<s>
The	O
HTC	B-Application
Desire	I-Application
Z	I-Application
(	O
also	O
marketed	O
as	O
T-Mobile	B-Application
G2	I-Application
in	O
the	O
US	O
)	O
(	O
codenamed	O
HTC	B-Application
Vision	I-Application
)	O
is	O
a	O
slider-style	O
smartphone	B-Application
developed	O
by	O
HTC	B-Application
Corporation	O
and	O
announced	O
on	O
15	O
September	O
2010	O
;	O
it	O
was	O
released	O
in	O
Europe	O
and	O
Canada	O
in	O
November	O
2010	O
,	O
following	O
a	O
number	O
of	O
delays	O
related	O
to	O
Google	O
's	O
quality	O
assurance	O
tests	O
.	O
</s>
<s>
Other	O
than	O
its	O
slider	O
configuration	O
,	O
the	O
Desire	B-Application
Z	I-Application
features	O
specifications	O
similar	O
to	O
the	O
HTC	B-Application
Desire	I-Application
and	O
the	O
HTC	B-Application
Desire	I-Application
HD	I-Application
.	O
</s>
<s>
The	O
design	O
of	O
the	O
HTC	B-Application
Desire	I-Application
Z	I-Application
has	O
capacitive	O
face	O
buttons	O
rather	O
than	O
the	O
mechanical	O
ones	O
the	O
HTC	B-Application
Desire	I-Application
features	O
.	O
</s>
<s>
According	O
to	O
HTC	B-Application
's	O
Vice	O
President	O
Bjorn	O
Kilburn	O
,	O
the	O
phone	O
is	O
the	O
last	O
Google-Assured	O
QWERTY	O
slider	O
to	O
be	O
manufactured	O
by	O
HTC	B-Application
.	O
</s>
<s>
The	O
HTC	B-Application
Desire	I-Application
Z	I-Application
features	O
an	O
improved	O
version	O
of	O
HTC	B-Application
Sense	I-Application
and	O
online	O
services	O
at	O
HTCSense.com	O
.	O
</s>
<s>
The	O
Desire	B-Application
Z	I-Application
has	O
HTC	B-Application
's	O
new	O
"	O
Fast	O
Boot	O
"	O
feature	O
,	O
which	O
is	O
a	O
type	O
of	O
sleep/hibernation	O
mode	O
instead	O
of	O
the	O
traditional	O
full	O
power	O
off	O
,	O
letting	O
it	O
power	O
on	O
in	O
less	O
than	O
5	O
seconds	O
;	O
a	O
full	O
boot	O
can	O
be	O
accomplished	O
by	O
removing	O
the	O
battery	O
or	O
by	O
restarting	O
the	O
phone	O
from	O
the	O
power	O
menu	O
of	O
Android	B-Application
which	O
is	O
reached	O
by	O
a	O
long	O
press	O
of	O
the	O
power	O
button	O
.	O
</s>
<s>
After	O
having	O
been	O
shipped	O
originally	O
with	O
Android	B-Application
2.2.1	I-Application
(	O
Froyo	B-Application
)	O
,	O
OTA	O
updates	O
have	O
now	O
been	O
pushed	O
which	O
upgraded	O
the	O
firmware	O
to	O
Android	B-Application
2.3.3	I-Application
(	O
Gingerbread	B-Application
)	O
with	O
the	O
HTC	B-Application
Sense	I-Application
2.1	O
.	O
</s>
<s>
Unofficial	O
versions	O
beyond	O
official	O
2.3.3	O
are	O
also	O
available	O
,	O
as	O
well	O
as	O
an	O
early	O
port	O
of	O
Sailfish	B-Operating_System
OS	I-Operating_System
.	O
</s>
<s>
HTC	B-Application
Desire	I-Application
Z	I-Application
has	O
an	O
aluminium	O
shell	O
and	O
QWERTY	O
keyboard	O
with	O
three	O
programmable	O
keys	O
.	O
</s>
<s>
The	O
smartphone	B-Application
has	O
an	O
800×480	O
3.7-inch	O
Super	O
LCD	O
capacitive	O
touchscreen	O
.	O
</s>
<s>
The	O
HTC	B-Application
Desire	I-Application
Z	I-Application
has	O
a	O
5-megapixel	O
camera	O
with	O
flash	B-Device
on	O
the	O
rear	O
side	O
.	O
</s>
<s>
The	O
reception	O
for	O
the	O
HTC	B-Application
Desire	I-Application
Z	I-Application
has	O
been	O
mixed	O
with	O
some	O
website	O
reviews	O
praising	O
the	O
keyboard	O
typing	O
and	O
citing	O
similar	O
features	O
to	O
the	O
critically	O
acclaimed	O
HTC	B-Application
Desire	I-Application
while	O
others	O
have	O
had	O
complaints	O
about	O
the	O
hinge	O
in	O
the	O
"	O
Z	O
style	O
"	O
sliding	O
out	O
keyboard	O
and	O
the	O
lack	O
of	O
strong	O
battery	O
life	O
.	O
</s>
<s>
T-Mobile	O
USA	O
sold	O
a	O
variant	O
of	O
the	O
Desire	B-Application
Z	I-Application
called	O
the	O
T-Mobile	B-Application
G2	I-Application
,	O
which	O
it	O
discontinued	O
in	O
June	O
2011	O
.	O
</s>
<s>
The	O
primary	O
operational	O
difference	O
is	O
that	O
the	O
G2	O
runs	O
the	O
stock	O
Android	B-Application
interface	O
instead	O
of	O
HTC	B-Application
's	O
customised	O
Sense	O
interface	O
,	O
and	O
that	O
the	O
G2	O
has	O
4GB	O
of	O
internal	O
storage	O
(	O
only	O
2GB	O
user	O
accessible	O
,	O
usable	O
equivalent	O
equal	O
to	O
Desire	B-Application
Z	I-Application
)	O
while	O
the	O
Desire	B-Application
Z	I-Application
has	O
2GB	O
.	O
</s>
<s>
The	O
Canadian	O
version	O
of	O
the	O
HTC	B-Application
Desire	I-Application
Z	I-Application
comes	O
with	O
1.5GB	O
.	O
</s>
<s>
As	O
with	O
some	O
previous	O
HTC	B-Application
devices	O
,	O
the	O
G2	O
has	O
a	O
NAND	O
lock	O
that	O
normally	O
prevents	O
overwriting	O
the	O
operating	O
system	O
unless	O
authorized	O
by	O
the	O
manufacturer	O
.	O
</s>
<s>
Third	O
parties	O
have	O
overcome	O
this	O
lock	O
and	O
custom	O
operating	O
system	O
builds	O
such	O
as	O
CyanogenMod	B-Application
are	O
available	O
.	O
</s>
<s>
Bell	O
Mobility	O
was	O
the	O
exclusive	O
carrier	O
of	O
the	O
HTC	B-Application
Desire	I-Application
Z	I-Application
in	O
Canada	O
.	O
</s>
<s>
The	O
company	O
heavily	O
advertised	O
the	O
Android	B-Application
smartphone	B-Application
,	O
its	O
full	O
QWERTY	O
keyboard	O
and	O
the	O
preinstalled	O
Bell	O
Mobile	O
TV	O
app	O
.	O
</s>
<s>
Advertisements	O
in	O
NHL	O
locations	O
such	O
as	O
the	O
Scotiabank	O
Place	O
include	O
a	O
boutique	O
where	O
the	O
phone	O
can	O
be	O
purchased	O
,	O
a	O
lighted	O
display	O
panel	O
near	O
big	O
screen	O
TVs	O
,	O
and	O
even	O
most	O
elevator	O
doors	O
featured	O
the	O
smartphone	B-Application
.	O
</s>
