<s>
The	O
Danger	B-Application
Hiptop	I-Application
,	O
also	O
re-branded	O
as	O
the	O
T-Mobile	B-Application
Sidekick	I-Application
,	O
Mobiflip	B-Application
and	O
Sharp	B-Application
Jump	I-Application
is	O
a	O
GPRS/EDGE/UMTS	O
smartphone	B-Application
that	O
was	O
produced	O
by	O
Danger	O
,	O
Inc	O
.	O
from	O
2002	O
to	O
2010	O
.	O
</s>
<s>
The	O
Hiptop	B-Application
software	O
was	O
designed	O
by	O
Danger	O
,	O
Inc.	O
,	O
which	O
was	O
located	O
in	O
Palo	O
Alto	O
,	O
California	O
and	O
purchased	O
by	O
Microsoft	O
for	O
$500	O
million	O
in	O
2008	O
.	O
</s>
<s>
Danger	O
provided	O
the	O
Hiptop	B-Application
OS	O
software	O
and	O
back-end	O
services	O
for	O
the	O
device	O
.	O
</s>
<s>
This	O
included	O
a	O
catalog	O
of	O
downloadable	O
software	O
applications	O
,	O
email	O
hosting	O
,	O
instant	B-Application
messaging	I-Application
,	O
web	O
proxies	O
and	O
a	O
cloud	O
service	O
for	O
the	O
entire	O
personal	O
data	O
on	O
the	O
device	O
.	O
</s>
<s>
The	O
original	O
Hiptop	B-Application
hardware	O
was	O
designed	O
by	O
Danger	O
and	O
manufactured	O
by	O
Flextronics	O
.	O
</s>
<s>
The	O
Hiptop	B-Application
II	O
,	O
3	O
,	O
Sidekick	B-Application
iD	I-Application
,	O
Sidekick	B-Application
2008	O
and	O
Sidekick	B-Application
LX	O
(	O
2009	O
)	O
are	O
all	O
manufactured	O
by	O
Sharp	O
Corporation	O
in	O
Japan	O
and	O
designed	O
,	O
respectively	O
,	O
by	O
Danger	O
and	O
then	O
Danger	O
in	O
partnership	O
with	O
Sharp	O
.	O
</s>
<s>
All	O
versions	O
of	O
the	O
Hiptop	B-Application
were	O
developed	O
in	O
close	O
partnership	O
with	O
T-Mobile	O
,	O
although	O
carrier-specific	O
features	O
were	O
either	O
removed	O
or	O
added	O
for	O
each	O
carrier	O
,	O
such	O
as	O
the	O
addition	O
of	O
MMS	O
for	O
SunCom	O
and	O
Telstra	O
Hiptop	B-Application
2	O
users	O
,	O
where	O
the	O
feature	O
was	O
not	O
available	O
on	O
T-Mobile	O
USA	O
devices	O
until	O
the	O
Sidekick	B-Application
LX	O
in	O
2007	O
.	O
</s>
<s>
The	O
Hiptop/Sidekick	O
became	O
incredibly	O
popular	O
in	O
the	O
U.S.	O
and	O
has	O
been	O
considered	O
to	O
be	O
iconic	O
in	O
the	O
mobile	O
devices	O
market	O
.	O
</s>
<s>
On	O
all	O
Hiptops	B-Application
except	O
the	O
original	O
,	O
the	O
left	O
side	O
houses	O
a	O
directional	O
pad	O
and	O
on	O
the	O
right	O
,	O
a	O
track	B-Device
ball	I-Device
(	O
excluding	O
the	O
original	O
Hiptop	B-Application
)	O
The	O
Hiptop	B-Application
2	O
and	O
Slide	O
's	O
directional	O
pad	O
contains	O
internal	O
multicolored	O
LEDs	O
used	O
in	O
ringers	O
and	O
notifications	O
,	O
while	O
the	O
3	O
,	O
2008	O
,	O
LX	O
,	O
and	O
2009	O
track	B-Device
ball	I-Device
contains	O
internal	O
multicolored	O
LEDs	O
that	O
provide	O
the	O
same	O
function	O
.	O
</s>
<s>
The	O
Hiptop	B-Application
line	O
is	O
designed	O
to	O
be	O
held	O
horizontally	O
with	O
both	O
hands	O
,	O
allowing	O
typing	O
with	O
two	O
thumbs	O
,	O
similar	O
to	O
a	O
Game	B-Device
Boy	I-Device
Advance	I-Device
or	O
a	O
console	O
video	O
game	O
controller	O
.	O
</s>
<s>
Released	O
on	O
October	O
1	O
,	O
2002	O
,	O
the	O
original	O
Hiptop	B-Application
was	O
unique	O
compared	O
to	O
all	O
other	O
hardware	O
versions	O
.	O
</s>
<s>
The	O
Hiptop	B-Application
also	O
featured	O
a	O
speaker	O
which	O
is	O
used	O
for	O
device	O
sounds	O
but	O
not	O
telephone	O
.	O
</s>
<s>
A	O
later	O
revision	O
of	O
the	O
Hiptop	B-Application
upgraded	O
its	O
screen	O
from	O
a	O
monochrome	O
LCD	O
to	O
a	O
color	O
LCD	O
viewable	O
with	O
or	O
without	O
the	O
backlight	O
on	O
(	O
unique	O
to	O
Hiptop	B-Application
models	O
until	O
the	O
LX	O
)	O
.	O
</s>
<s>
It	O
is	O
slightly	O
bigger	O
than	O
any	O
later	O
Hiptop	B-Application
.	O
</s>
<s>
The	O
Hiptop	B-Application
was	O
sold	O
by	O
T-Mobile	O
in	O
the	O
United	O
States	O
,	O
United	O
Kingdom	O
,	O
Germany	O
and	O
Austria	O
.	O
</s>
<s>
SunCom	O
and	O
Edge	O
Wireless	O
used	O
to	O
sell	O
the	O
device	O
in	O
some	O
parts	O
of	O
the	O
United	O
States	O
,	O
and	O
Fido	O
was	O
the	O
exclusive	O
Hiptop	B-Application
carrier	O
in	O
Canada	O
until	O
sales	O
were	O
discontinued	O
after	O
Fido	O
was	O
bought	O
by	O
Rogers	O
Communications	O
,	O
at	O
the	O
end	O
of	O
the	O
Hiptop	B-Application
2	O
's	O
life	O
.	O
</s>
<s>
The	O
discontinuation	O
was	O
mainly	O
because	O
the	O
Hiptop	B-Application
is	O
a	O
competitor	O
to	O
Rogers	O
 '	O
BlackBerry	B-Operating_System
business	O
.	O
</s>
<s>
In	O
Germany	O
,	O
the	O
Hiptop	B-Application
service	O
was	O
also	O
offered	O
from	O
2003	O
by	O
E-Plus	O
which	O
included	O
a	O
flat	O
rate	O
tariff	O
.	O
</s>
<s>
The	O
Hiptop	B-Application
was	O
also	O
sold	O
in	O
Singapore	O
by	O
Starhub	O
in	O
2004	O
.	O
</s>
<s>
Released	O
in	O
2004	O
,	O
the	O
Hiptop2	B-Application
was	O
introduced	O
with	O
Danger	O
moving	O
the	O
D-Pad	O
(	O
directional-pad	O
)	O
to	O
the	O
left	O
side	O
of	O
the	O
Hiptop	B-Application
(	O
from	O
the	O
inside	O
where	O
it	O
was	O
previously	O
found	O
)	O
,	O
along	O
with	O
top-left	O
and	O
top-right	O
shoulder	O
dials	O
,	O
volume	O
up/down	O
and	O
power	O
on	O
bottom	O
of	O
phone	O
.	O
</s>
<s>
The	O
Hiptop2	B-Application
also	O
features	O
a	O
VGA	O
camera	O
,	O
and	O
the	O
addition	O
of	O
page-up/page	O
-down	O
buttons	O
on	O
the	O
top	O
and	O
bottom	O
of	O
its	O
scroll	O
wheel	O
.	O
</s>
<s>
The	O
line-by-line	O
scrolling	O
feature	O
is	O
notable	O
to	O
the	O
Hiptop	B-Application
brand	O
of	O
products	O
and	O
is	O
not	O
a	O
feature	O
of	O
most	O
other	O
multi-function	O
cell	O
phones	O
.	O
</s>
<s>
The	O
Hiptop2	B-Application
has	O
two	O
speakers	O
;	O
the	O
phone	O
speaker	O
built	O
into	O
the	O
D-pad	O
,	O
and	O
a	O
speaker	O
on	O
the	O
back	O
of	O
the	O
unit	O
(	O
near	O
the	O
VGA	O
camera	O
)	O
for	O
sounds	O
,	O
alerts	O
and	O
speaker	O
phone	O
calls	O
.	O
</s>
<s>
Another	O
important	O
feature	O
of	O
the	O
Hiptop2	B-Application
is	O
the	O
ability	O
to	O
easily	O
view	O
the	O
screen	O
even	O
without	O
a	O
backlight	O
.	O
</s>
<s>
Hiptop	B-Application
and	O
Palm	O
Treo	O
units	O
(	O
Treo	B-Application
600	I-Application
and	O
later	O
)	O
utilized	O
a	O
transflective	B-General_Concept
liquid	I-General_Concept
crystal	I-General_Concept
display	I-General_Concept
that	O
worked	O
with	O
and	O
without	O
the	O
backlight	O
,	O
making	O
the	O
IM	O
,	O
mail	O
,	O
and	O
all	O
other	O
messages	O
readable	O
even	O
in	O
bright	O
sunlight	O
,	O
and	O
without	O
picking	O
the	O
unit	O
up	O
.	O
</s>
<s>
The	O
dimensions	O
of	O
the	O
Hiptop2	B-Application
are	O
133mm	O
x	O
64mm	O
x	O
21mm	O
.	O
</s>
<s>
On	O
October	O
9	O
,	O
2006	O
,	O
the	O
Australian	O
Hiptop2	B-Application
was	O
released	O
through	O
Telstra	O
.	O
</s>
<s>
The	O
Australian	O
version	O
is	O
practically	O
the	O
same	O
as	O
the	O
Sidekick	B-Application
II	I-Application
in	O
the	O
U.S.	O
but	O
re-constructed	O
for	O
the	O
Australian	O
audience	O
it	O
has	O
MSN	B-Protocol
Messenger	I-Protocol
built-in	O
as	O
the	O
default	O
messenger	O
and	O
Yahoo	B-Application
!	O
</s>
<s>
Messenger	O
which	O
is	O
downloadable	O
from	O
the	O
catalog	O
(	O
the	O
US	O
version	O
has	O
Yahoo	B-Application
and	O
AOL	B-Protocol
Instant	I-Protocol
Messenger	I-Protocol
)	O
.	O
</s>
<s>
There	O
are	O
also	O
two	O
limited	O
edition	O
variants	O
of	O
the	O
T-Mobile	O
USA	O
Sidekick	B-Application
II	I-Application
:	O
Juicy	O
Couture	O
Edition	O
(	O
Pink	O
)	O
and	O
Mister	O
Cartoon	O
Edition	O
(	O
Black	O
)	O
.	O
</s>
<s>
These	O
are	O
different	O
case	O
colors	O
with	O
the	O
same	O
hardware	O
and	O
operating	B-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
The	O
scroll	O
wheel	O
was	O
replaced	O
by	O
a	O
multicolor	O
LED-lit	O
six-direction	O
trackball	B-Device
replacing	O
the	O
D-pad	O
as	O
the	O
indicator	O
light	O
.	O
</s>
<s>
New	O
features	O
were	O
introduced	O
including	O
a	O
removable	O
3.7v	O
1500	O
mAh	O
battery	O
,	O
a	O
miniSD	B-Device
slot	O
capable	O
of	O
up	O
to	O
2GB	O
of	O
flash	O
memory	O
storage	O
,	O
a	O
1.3-megapixel	O
camera	O
capable	O
of	O
1280	O
x	O
1024	O
resolution	O
,	O
an	O
improvement	O
from	O
the	O
sub-megapixel	O
VGA	O
640	O
x	O
480	O
camera	O
,	O
and	O
a	O
built-in	O
1/16	O
"	O
audio	O
jack	O
for	O
the	O
newly	O
included	O
MP3	B-Application
playback	O
software	O
.	O
</s>
<s>
The	O
MiniUSB	O
functionality	O
was	O
changed	O
from	O
allowing	O
access	O
to	O
the	O
Hiptop	B-Application
's	O
internal	O
communications	O
to	O
only	O
allowing	O
access	O
to	O
the	O
MiniSD	B-Device
card	O
over	O
a	O
USB	O
v1.1	O
port	O
.	O
</s>
<s>
The	O
built-in	O
storage	O
allows	O
for	O
end-users	O
to	O
store	O
files	O
for	O
.mp3	B-Application
,	O
.wav	O
,	O
and	O
.aac	O
playback	O
,	O
camera	O
,	O
user	O
customizable	O
themes	O
and	O
other	O
catalog	O
application	O
's	O
uses	O
.	O
</s>
<s>
The	O
T-Mobile	O
USA	O
Sidekick	B-Application
3	I-Application
was	O
made	O
available	O
in	O
three	O
limited	O
edition	O
models	O
which	O
only	O
differed	O
in	O
cosmetic	O
color	O
changes	O
:	O
</s>
<s>
The	O
Sidekick	B-Application
iD	I-Application
is	O
a	O
smaller	O
version	O
of	O
the	O
Sidekick	B-Application
3	I-Application
.	O
</s>
<s>
The	O
Sidekick	B-Application
iD	I-Application
was	O
aimed	O
at	O
younger	O
,	O
less	O
affluent	O
customers	O
.	O
</s>
<s>
To	O
reduce	O
the	O
cost	O
of	O
the	O
Sidekick	B-Application
iD	I-Application
,	O
the	O
creators	O
,	O
(	O
Sharp	O
)	O
,	O
removed	O
some	O
of	O
the	O
features	O
of	O
the	O
Sidekick	B-Application
3	I-Application
,	O
including	O
the	O
1.3-megapixel	O
camera	O
,	O
the	O
Bluetooth	O
capability	O
,	O
and	O
its	O
media	O
player	O
.	O
</s>
<s>
Although	O
many	O
of	O
the	O
"	O
fun	O
"	O
features	O
were	O
taken	O
out	O
,	O
Danger	O
and	O
Sharp	O
did	O
keep	O
some	O
of	O
the	O
features	O
previously	O
seen	O
on	O
the	O
Sidekick	B-Application
1	O
,	O
2	O
and	O
3	O
.	O
</s>
<s>
This	O
included	O
the	O
Sidekick-patented	O
swivel	O
screen	O
,	O
the	O
hidden	O
keyboard	O
,	O
and	O
the	O
trackball	B-Device
.	O
</s>
<s>
However	O
,	O
a	O
new	O
feature	O
were	O
removable	O
colored	O
"	O
bumpers	O
"	O
,	O
allowing	O
the	O
appearance	O
of	O
the	O
Sidekick	B-Application
to	O
be	O
easily	O
changed	O
.	O
</s>
<s>
The	O
Sidekick	B-Application
LX	O
(	O
PV-250	O
)	O
was	O
released	O
on	O
October	O
17	O
,	O
2007	O
for	O
existing	O
T-Mobile	O
customers	O
via	O
the	O
Internet	O
and	O
five	O
special	O
locations	O
.	O
</s>
<s>
The	O
Sidekick	B-Application
LX	O
is	O
available	O
in	O
two	O
different	O
colors	O
,	O
Midnight	O
Blue	O
and	O
Espresso	O
Brown	O
.	O
</s>
<s>
In	O
addition	O
to	O
the	O
two	O
color	O
selections	O
,	O
the	O
LX	O
includes	O
a	O
wider	O
,	O
higher-resolution	O
screen	O
,	O
blue	O
LED	O
mood	O
lights	O
on	O
all	O
four	O
corners	O
which	O
coordinate	O
to	O
the	O
user	O
's	O
settings	O
,	O
downloadable	O
music	O
and	O
backgrounds	O
,	O
a	O
lighter	O
weight	O
,	O
MMS	O
messaging	B-Protocol
,	O
and	O
a	O
Micro	B-Device
SD	I-Device
card	I-Device
slot	O
with	O
a	O
128MB	O
card	O
included	O
(	O
over	O
the	O
Sidekick	B-Application
3	I-Application
's	O
64MB	O
MiniSD	B-Device
card	O
)	O
,	O
and	O
an	O
updated	O
operating	B-General_Concept
system	I-General_Concept
.	O
</s>
<s>
On	O
July	O
16	O
,	O
2008	O
,	O
T-Mobile	O
released	O
a	O
limited	O
edition	O
Tony	O
Hawk	O
Edition	O
Sidekick	B-Application
LX	O
,	O
which	O
includes	O
video	O
recording	O
.	O
</s>
<s>
Despite	O
production	O
models	O
being	O
made	O
for	O
testing	O
,	O
ultimately	O
the	O
LX	O
was	O
never	O
released	O
in	O
Australia	O
due	O
to	O
a	O
lack	O
of	O
compatibility	O
with	O
Telstra	O
's	O
3G	B-Architecture
850Mhz	O
network	O
,	O
however	O
Telstra	O
went	O
ahead	O
with	O
selling	O
the	O
Slide	O
after	O
the	O
Hiptop3	O
;	O
the	O
Hiptop3	O
is	O
now	O
phased	O
out	O
.	O
</s>
<s>
A	O
Midnight	O
Blue	O
Sidekick	B-Application
LX	O
was	O
featured	O
in	O
the	O
video	O
game	O
Midnight	B-Application
Club	I-Application
:	I-Application
Los	I-Application
Angeles	I-Application
.	O
</s>
<s>
In	O
late	O
2010	O
,	O
Mobilicity	O
began	O
selling	O
the	O
Sidekick	B-Application
LX	O
2009	O
as	O
the	O
Mobiflip	B-Application
.	O
</s>
<s>
In	O
early	O
2011	O
,	O
US	O
regional	O
carrier	O
Cincinnati	O
Bell	O
began	O
selling	O
the	O
Sidekick	B-Application
LX	O
2009	O
as	O
the	O
Sharp	B-Application
Jump	I-Application
.	O
</s>
<s>
In	O
Australia	O
it	O
is	O
marketed	O
as	O
the	O
Hiptop	B-Application
Slide	O
and	O
in	O
the	O
U.S.	O
as	O
the	O
Sidekick	B-Application
Slide	O
.	O
</s>
<s>
It	O
was	O
later	O
released	O
in	O
the	O
UK	O
and	O
Germany	O
by	O
T-Mobile	O
(	O
as	O
opposed	O
to	O
the	O
Sidekick	B-Application
LX	O
only	O
being	O
released	O
by	O
T-Mobile	O
USA	O
)	O
.	O
</s>
<s>
The	O
Sidekick/Hiptop	O
Slide	O
offers	O
the	O
same	O
features	O
and	O
services	O
as	O
every	O
other	O
Danger	O
device	O
and	O
an	O
update	O
to	O
Danger	O
's	O
latest	O
OS	O
version	O
(	O
4.0	O
)	O
.	O
</s>
<s>
Like	O
the	O
LX	O
,	O
this	O
Sidekick	B-Application
for	O
T-Mobile	O
USA	O
adds	O
the	O
Multimedia	O
Messaging	B-Protocol
application	O
and	O
provides	O
support	O
for	O
T-Mobile	O
MyFaves	O
plans	O
.	O
</s>
<s>
The	O
T-Mobile	B-Application
Sidekick	I-Application
Slide	O
,	O
although	O
less	O
expensive	O
than	O
the	O
LX	O
,	O
provides	O
various	O
hardware	O
upgrades	O
.	O
</s>
<s>
These	O
upgrades	O
include	O
128MB	O
RAM	O
and	O
225MHz	O
TI	O
OMAP	O
850	O
processor	O
,	O
as	O
opposed	O
to	O
the	O
Sidekick	B-Application
3	I-Application
and	O
LX	O
's	O
64MB	O
RAM	O
and	O
200MHz	O
OMAP	O
331	O
processor	O
,	O
and	O
a	O
second	O
speaker	O
which	O
is	O
located	O
on	O
the	O
back	O
of	O
the	O
device	O
,	O
as	O
opposed	O
to	O
the	O
Hiptop	B-Application
3	O
and	O
LX	O
's	O
reliance	O
on	O
the	O
D-pad	O
speaker	O
for	O
both	O
calls	O
and	O
music	O
playback	O
.	O
</s>
<s>
T-Mobile	O
USA	O
suspended	O
sales	O
of	O
the	O
Sidekick	B-Application
Slide	O
on	O
Friday	O
evening	O
,	O
November	O
16	O
,	O
2007	O
,	O
after	O
Motorola	O
confirmed	O
that	O
some	O
devices	O
inadvertently	O
powered	O
off	O
when	O
the	O
slide	O
door	O
on	O
the	O
front	O
side	O
of	O
the	O
phone	O
was	O
opened	O
or	O
closed	O
.	O
</s>
<s>
Sidekick	B-Application
Slide	O
owners	O
that	O
reported	O
the	O
power	O
issue	O
received	O
a	O
free	O
exchange	O
to	O
a	O
blue	O
Sidekick	B-Application
LX	O
with	O
free	O
express	O
shipping	O
.	O
</s>
<s>
On	O
December	O
6	O
,	O
2007	O
,	O
the	O
Sidekick	B-Application
Slide	O
was	O
once	O
again	O
available	O
for	O
purchase	O
.	O
</s>
<s>
On	O
May	O
16	O
,	O
2008	O
,	O
a	O
new	O
version	O
of	O
the	O
Sidekick	B-Application
Slide	O
was	O
released	O
,	O
named	O
the	O
Sidekick	B-Application
Slide	O
Scarlet	O
.	O
</s>
<s>
The	O
Sidekick	B-Application
Slide	O
was	O
officially	O
discontinued	O
on	O
August	O
8	O
,	O
2008	O
.	O
</s>
<s>
It	O
was	O
available	O
for	O
sale	O
again	O
on	O
December	O
12	O
,	O
2008	O
,	O
however	O
,	O
T-Mobile	O
has	O
once	O
again	O
discontinued	O
the	O
Sidekick	B-Application
Slide	O
.	O
</s>
<s>
On	O
October	O
1	O
,	O
2009	O
,	O
Telstra	O
officially	O
discontinued	O
the	O
Hiptop	B-Application
service	O
plans	O
and	O
phones	O
.	O
</s>
<s>
On	O
August	O
1	O
,	O
2008	O
T-Mobile	O
released	O
the	O
Sidekick	B-Application
2008	O
right	O
before	O
the	O
Slide	O
was	O
discontinued	O
.	O
</s>
<s>
This	O
has	O
improved	O
features	O
such	O
as	O
a	O
high	O
resolution	O
2-megapixel	O
camera	O
and	O
video	O
functionality	O
high	O
quality	O
AIM	B-Protocol
.	O
</s>
<s>
The	O
Sidekick	B-Application
2008	O
is	O
available	O
only	O
in	O
certain	O
T-mobile	O
stores	O
.	O
</s>
<s>
The	O
Sidekick	B-Application
2008	O
features	O
were	O
reviewed	O
by	O
,	O
and	O
in	O
a	O
.	O
</s>
<s>
The	O
2009	O
edition	O
of	O
the	O
Sidekick	B-Application
LX	O
(	O
PV-300	O
)	O
,	O
which	O
was	O
known	O
during	O
the	O
development	O
phase	O
as	O
the	O
"	O
Sidekick	B-Application
Blade	O
"	O
or	O
the	O
"	O
Sidekick	B-Application
2009	O
"	O
,	O
was	O
released	O
on	O
May	O
13	O
,	O
2009	O
,	O
after	O
a	O
pre-order	O
period	O
beginning	O
on	O
April	O
17	O
.	O
</s>
<s>
The	O
new	O
handset	O
supports	O
3G	B-Architecture
and	O
HSDPA	O
,	O
and	O
makes	O
various	O
changes	O
to	O
the	O
hardware	O
,	O
including	O
a	O
3.2inch	O
F-WVGA	O
display	O
with	O
854×480	O
resolution	O
and	O
a	O
3.2-megapixel	O
camera	O
with	O
autofocus	O
and	O
flash	O
.	O
</s>
<s>
Support	O
for	O
Facebook	B-Application
,	O
Twitter	B-Application
and	O
MySpace	B-Application
is	O
now	O
native	O
to	O
the	O
system	O
,	O
allowing	O
the	O
handset	O
to	O
pass	O
along	O
notifications	O
in	O
the	O
status	O
bar	O
as	O
it	O
does	O
with	O
instant	B-Application
messaging	I-Application
,	O
e-mail	O
and	O
so	O
forth	O
.	O
</s>
<s>
YouTube	B-General_Concept
streaming	O
playback	O
is	O
also	O
supported	O
on	O
the	O
system	O
through	O
Flash	O
Lite	O
.	O
</s>
<s>
The	O
Sidekick	B-Application
LX	O
2009	O
offered	O
synchronization	O
with	O
Microsoft	B-Application
Outlook	I-Application
and	O
Microsoft	B-Operating_System
Exchange	I-Operating_System
,	O
through	O
a	O
download	O
via	O
the	O
applications	O
catalog	O
.	O
</s>
<s>
The	O
highest-profile	O
addition	O
to	O
the	O
handset	O
was	O
Bing	B-Application
(	O
then	O
called	O
"	O
Live	B-Application
Search	I-Application
"	O
)	O
,	O
was	O
added	O
and	O
integrated	O
with	O
the	O
new	O
GPS	O
functionality	O
;	O
the	O
mapping	O
software	O
previously	O
relied	O
on	O
cell-tower	O
triangulation	O
(	O
a	O
far	O
less	O
accurate	O
process	O
)	O
.	O
</s>
<s>
T-Mobile	O
announced	O
on	O
July	O
2	O
,	O
2010	O
,	O
that	O
the	O
Sidekick	B-Application
LX	O
09	O
and	O
Sidekick	B-Application
2008	O
would	O
no	O
longer	O
be	O
available	O
through	O
T-Mobile	O
.	O
</s>
<s>
The	O
development	O
of	O
applications	O
for	O
the	O
Sidekick	B-Application
platform	O
was	O
also	O
halted	O
on	O
September	O
21	O
,	O
2010	O
.	O
</s>
<s>
However	O
the	O
Canadian	O
company	O
Mobilicity	O
later	O
began	O
selling	O
the	O
Sidekick	B-Application
LX	O
(	O
2009	O
)	O
under	O
the	O
name	O
Mobiflip	B-Application
.	O
</s>
<s>
While	O
the	O
T-Mobile	B-Application
Sidekick	I-Application
LX	O
2009	O
was	O
no	O
longer	O
sold	O
from	O
July	O
2	O
,	O
2010	O
onwards	O
,	O
modified	O
versions	O
of	O
the	O
device	O
have	O
been	O
available	O
for	O
sale	O
since	O
.	O
</s>
<s>
In	O
Canada	O
,	O
carrier	O
Mobilicity	O
began	O
selling	O
the	O
device	O
under	O
the	O
name	O
"	O
Mobiflip	B-Application
"	O
and	O
the	O
model	O
number	O
PV300G	O
in	O
late	O
December	O
2010	O
.	O
</s>
<s>
In	O
the	O
United	O
States	O
,	O
regional	O
carrier	O
Cincinnati	O
Bell	O
began	O
selling	O
the	O
"	O
Sharp	B-Application
Jump	I-Application
"	O
,	O
model	O
number	O
PV300GC	O
,	O
in	O
early	O
2011	O
.	O
</s>
<s>
This	O
modified	O
OS	O
is	O
independent	O
of	O
any	O
backend	O
service	O
,	O
and	O
the	O
original	O
Danger	B-Application
Web	I-Application
browser	I-Application
,	O
Instant	B-Application
Messaging	I-Application
and	O
Email	O
applications	O
have	O
been	O
removed	O
.	O
</s>
<s>
The	O
Web	B-Application
browser	I-Application
was	O
replaced	O
with	O
Opera	B-Protocol
Mini	I-Protocol
whereas	O
the	O
Instant	B-Application
Messaging	I-Application
clients	O
were	O
replaced	O
with	O
one	O
universal	O
client	O
which	O
also	O
allows	O
the	O
user	O
to	O
connect	O
to	O
an	O
IM	O
service	O
through	O
an	O
XMPP	B-Protocol
server	O
.	O
</s>
<s>
The	O
Mobiflip	B-Application
can	O
be	O
unlocked	O
for	O
voice	O
service	O
worldwide	O
,	O
but	O
will	O
not	O
work	O
for	O
data	O
due	O
to	O
the	O
lack	O
of	O
an	O
option	O
to	O
change	O
the	O
network	O
APN	O
.	O
</s>
<s>
The	O
Sharp	B-Application
Jump	I-Application
is	O
different	O
as	O
it	O
is	O
possible	O
to	O
change	O
the	O
network	O
APN	O
,	O
and	O
will	O
work	O
with	O
voice	O
and	O
data	O
anywhere	O
in	O
the	O
world	O
provided	O
the	O
phone	O
is	O
unlocked	O
and	O
a	O
compatible	O
GSM	O
or	O
UMTS	B-Protocol
network	O
is	O
available	O
.	O
</s>
<s>
In	O
April	O
2011	O
,	O
T-Mobile	O
revived	O
the	O
Sidekick	B-Application
brand	O
for	O
a	O
new	O
4G	B-Architecture
HSPA+	O
-compatible	O
Android	B-Application
smartphone	B-Application
developed	O
by	O
Samsung	B-Application
,	O
known	O
as	O
the	O
Sidekick	B-Application
4G	I-Application
,	O
based	O
on	O
the	O
Galaxy	B-Application
S	I-Application
.	O
It	O
incorporates	O
features	O
from	O
the	O
original	O
series	O
,	O
including	O
the	O
keyboard	O
,	O
3.2-megapixel	O
camera	O
(	O
minus	O
LED	O
flash	O
)	O
,	O
and	O
the	O
four-button	O
layout	O
,	O
and	O
adds	O
a	O
new	O
Android-powered	O
interface	O
incorporating	O
elements	O
from	O
the	O
Hiptop	B-Application
's	O
operating	B-General_Concept
system	I-General_Concept
.	O
</s>
<s>
It	O
should	O
not	O
be	O
confused	O
for	O
a	O
Danger	O
device	O
,	O
to	O
which	O
these	O
have	O
no	O
relation	O
other	O
than	O
the	O
T-Mobile	O
exclusive	O
"	O
Sidekick	B-Application
"	O
branding	O
.	O
</s>
<s>
The	O
Hiptop	B-Application
operating	B-General_Concept
system	I-General_Concept
,	O
referred	O
to	O
as	O
DangerOS	O
,	O
is	O
one	O
of	O
the	O
only	O
Java-based	O
operating	B-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
Even	O
the	O
device	O
drivers	O
were	O
developed	O
in	O
Java	B-Language
.	O
</s>
<s>
A	O
large	O
part	O
of	O
DangerOS	O
's	O
architecture	O
was	O
used	O
later	O
to	O
create	O
the	O
Android	B-Application
operating	I-Application
system	I-Application
.	O
</s>
<s>
For	O
Hiptop	B-Application
development	O
,	O
Danger	O
has	O
its	O
own	O
proprietary	O
APIs	B-Application
,	O
which	O
are	O
a	O
subset	O
of	O
J2SE	O
with	O
their	O
own	O
extensions	O
.	O
</s>
<s>
Danger	O
introduced	O
support	O
for	O
Java	B-Language
ME	I-Language
,	O
the	O
Java	B-Language
language	I-Language
optimized	O
for	O
mobile	O
devices	O
,	O
to	O
its	O
OS	O
with	O
the	O
release	O
of	O
OS	O
2.3	O
.	O
</s>
<s>
Each	O
Sidekick	B-Application
had	O
an	O
IM	O
client	O
(	O
with	O
AIM	B-Protocol
,	O
Yahoo	B-Application
Messenger	I-Application
,	O
and	O
MSN	B-Protocol
Messenger	I-Protocol
)	O
;	O
an	O
Email	O
client	O
with	O
an	O
included	O
T-Mail	O
account	O
;	O
a	O
pre-installed	O
game	O
(	O
Rockets	O
and	O
Rocks	O
or	O
Bob	O
's	O
Journey	O
)	O
;	O
an	O
organizer	O
with	O
planner	O
,	O
a	O
calendar	O
,	O
and	O
calculator	O
;	O
an	O
SMS	O
and	O
phone	O
app	O
;	O
a	O
Download	O
Fun	O
catalog	O
(	O
also	O
called	O
Catalog	O
on	O
Hiptop	B-Application
devices	O
)	O
;	O
and	O
later	O
devices	O
had	O
a	O
variety	O
of	O
social	O
network	O
apps	O
accessed	O
from	O
a	O
section	O
called	O
Communities	O
.	O
</s>
<s>
Devices	O
released	O
in	O
Europe	O
also	O
had	O
a	O
WAP	B-Protocol
browser	I-Protocol
(	O
Wapaka	O
)	O
developed	O
by	O
the	O
French	O
company	O
Digital	O
Airways	O
.	O
</s>
<s>
To	O
aid	O
third-party	O
software	O
design	O
,	O
Danger	O
released	O
a	O
comprehensive	O
software	B-Application
development	I-Application
kit	I-Application
(	O
SDK	O
)	O
that	O
contained	O
a	O
Hiptop	B-Application
simulator	O
,	O
development	O
installation	O
utilities	O
,	O
and	O
Danger	O
API	B-Application
information	O
.	O
</s>
<s>
There	O
was	O
no	O
way	O
to	O
add	O
applications	O
to	O
the	O
standard	O
Hiptop	B-Application
software	O
on	O
the	O
device	O
without	O
the	O
use	O
of	O
the	O
Catalog	O
.	O
</s>
<s>
Application	O
developers	O
can	O
bypass	O
this	O
functionality	O
by	O
using	O
the	O
included	O
programs	O
in	O
the	O
Danger	B-Application
Hiptop	I-Application
SDK	O
to	O
install	O
user-written	O
applications	O
to	O
the	O
Hiptop	B-Application
device	O
directly	O
.	O
</s>
<s>
While	O
DangerOS	O
uses	O
.jar	B-Language
files	O
for	O
applications	O
,	O
they	O
are	O
uploaded	O
to	O
the	O
device	O
in	O
special	O
files	O
called	O
"	O
bundles	O
"	O
.	O
</s>
<s>
Each	O
bundle	O
file	O
is	O
linked	O
to	O
a	O
specific	O
operating	B-General_Concept
system	I-General_Concept
version	O
and	O
build	O
number	O
.	O
</s>
<s>
For	O
example	O
,	O
a	O
bundle	O
file	O
for	O
v3.4/155053	O
(	O
T-Mobile	B-Application
Sidekick	I-Application
3	O
)	O
would	O
be	O
denied	O
installation	O
on	O
a	O
v3.3/149695	O
device	O
(	O
T-Mobile	B-Application
Sidekick	I-Application
iD	O
)	O
.	O
</s>
<s>
The	O
Sidekick	B-Application
LX	O
2009	O
model	O
runs	O
DangerOS	O
5.0	O
which	O
is	O
based	O
on	O
NetBSD	B-Device
.	O
</s>
<s>
On	O
October	O
2	O
,	O
2009	O
,	O
Microsoft	O
(	O
the	O
owner	O
of	O
Danger	O
,	O
Inc	O
.	O
)	O
lost	O
the	O
ability	O
to	O
access	O
user	O
data	O
for	O
T-Mobile	O
US	O
Sidekick	B-Application
subscribers	O
temporarily	O
.	O
</s>
<s>
Sidekick	B-Application
user	O
data	O
is	O
stored	O
at	O
Danger	O
facilities	O
,	O
under	O
the	O
ownership	O
of	O
Microsoft	O
.	O
</s>
<s>
Lawsuits	O
against	O
Microsoft	O
claim	O
that	O
Microsoft	O
had	O
inadequate	O
backups	O
or	O
an	O
insufficient	O
disaster	B-General_Concept
recovery	I-General_Concept
plan	I-General_Concept
.	O
</s>
<s>
As	O
a	O
result	O
of	O
the	O
outage	O
,	O
T-Mobile	O
suspended	O
sales	O
of	O
all	O
Sidekicks	B-Application
and	O
Sidekick	B-Application
Data	O
Plans	O
until	O
the	O
outage	O
was	O
resolved	O
.	O
</s>
<s>
On	O
February	O
28	O
,	O
2011	O
Engadget	B-Application
reported	O
Microsoft	O
would	O
discontinue	O
Danger	O
's	O
cloud	O
service	O
on	O
May	O
31	O
,	O
2011	O
.	O
</s>
<s>
After	O
that	O
date	O
,	O
Sidekicks	B-Application
no	O
longer	O
had	O
access	O
to	O
any	O
data	O
services	O
,	O
though	O
voice	O
service	O
still	O
functioned	O
.	O
</s>
<s>
In	O
Australia	O
,	O
the	O
Telstra	O
Hiptop	B-Application
service	O
was	O
continued	O
for	O
existing	O
customers	O
after	O
May	O
31	O
,	O
2011	O
,	O
when	O
the	O
T-Mobile	O
USA	O
Sidekick	B-Application
service	O
was	O
shut	O
down	O
.	O
</s>
<s>
Then	O
,	O
it	O
was	O
announced	O
that	O
the	O
Hiptop	B-Application
service	O
for	O
Telstra	O
customers	O
was	O
to	O
be	O
discontinued	O
on	O
October	O
4	O
,	O
2011	O
.	O
</s>
<s>
Selected	O
affected	O
customers	O
received	O
a	O
free	O
Samsung	B-Operating_System
Galaxy	I-Operating_System
551	O
to	O
replace	O
their	O
Hiptop	B-Application
devices	O
.	O
</s>
<s>
When	O
the	O
Hiptop/T	O
-Mobile	O
Sidekick	O
was	O
initially	O
released	O
in	O
late	O
2002	O
,	O
it	O
was	O
the	O
only	O
cellular	O
phone	O
to	O
factory	O
integrate	O
an	O
instant	B-Application
messaging	I-Application
client	O
,	O
specifically	O
AOL	B-Protocol
Instant	I-Protocol
Messenger	I-Protocol
.	O
</s>
<s>
Almost	O
immediately	O
it	O
began	O
replacing	O
the	O
dominant	O
wireless	O
devices	O
used	O
by	O
the	O
Deaf	O
at	O
that	O
time	O
,	O
namely	O
the	O
Motorola	O
T-900	O
,	O
PageWriter	O
,	O
and	O
TimePort	O
,	O
as	O
well	O
as	O
the	O
early	O
RIM	O
and	O
BlackBerry	B-Operating_System
e-mail	O
pagers	O
manufactured	O
by	O
Research	O
In	O
Motion	O
.	O
</s>
<s>
The	O
Hiptop/T	O
-Mobile	O
Sidekick	O
's	O
importance	O
to	O
the	O
Deaf	O
was	O
further	O
solidified	O
in	O
March	O
2003	O
when	O
it	O
became	O
the	O
first	O
cellular	O
phone	O
capable	O
of	O
placing	O
unassisted	O
TDD	O
and	O
Relay	O
Operator	O
calls	O
through	O
the	O
phone	O
's	O
web	B-Application
browser	I-Application
using	O
a	O
system	O
developed	O
by	O
Jon	O
B	O
.	O
Sharpe	O
at	O
Lormar	O
Logic	O
Company	O
.	O
</s>
<s>
Lormar	O
Logic	O
enhanced	O
the	O
TDD/Relay	O
Operator	O
system	O
in	O
August	O
2003	O
by	O
developing	O
a	O
means	O
for	O
the	O
deaf	O
to	O
place	O
calls	O
through	O
AOL	B-Protocol
Instant	I-Protocol
Messenger	I-Protocol
.	O
</s>
<s>
MCI	O
Relay	O
followed	O
two	O
months	O
later	O
with	O
a	O
Relay	O
Operator	O
system	O
accessible	O
through	O
telnet	B-Protocol
.	O
</s>
<s>
MCI	O
Relay	O
and	O
Hamilton	O
Relay	O
both	O
released	O
AOL	B-Protocol
Instant	I-Protocol
Messenger	I-Protocol
relay	O
systems	O
in	O
July	O
of	O
the	O
following	O
year	O
.	O
</s>
<s>
By	O
2005	O
,	O
at	O
least	O
four	O
Relay	O
Operator	O
providers	O
(	O
Hamilton	O
,	O
MCI	O
,	O
Sprint	O
,	O
Sorenson	O
,	O
and	O
i711	O
)	O
were	O
providing	O
direct	O
Relay	O
Operator	O
access	O
from	O
the	O
Sidekick	B-Application
using	O
either	O
one	O
of	O
the	O
instant	B-Application
messenger	I-Application
clients	O
or	O
through	O
a	O
free	O
download	O
from	O
the	O
Catalog	O
,	O
and	O
two	O
companies	O
(	O
Lormar	O
Logic	O
and	O
i711	O
)	O
were	O
providing	O
direct	O
TDD	O
access	O
.	O
</s>
<s>
Access	O
to	O
direct	O
TDD	O
and	O
relay	O
operator	O
communications	O
has	O
allowed	O
the	O
Hiptop/T	O
-Mobile	O
Sidekick	O
and	O
similar	O
devices	O
to	O
,	O
in	O
many	O
cases	O
,	O
replace	O
the	O
use	O
of	O
standard	O
TDD	O
machines	O
,	O
and	O
its	O
dominance	O
is	O
clearly	O
illustrated	O
by	O
the	O
evolution	O
of	O
its	O
own	O
sign	O
in	O
American	O
Sign	O
Language	O
,	O
made	O
using	O
both	O
hands	O
to	O
mimic	O
the	O
opening	O
of	O
the	O
rotating	O
screen	O
.	O
</s>
