<s>
A	O
similar	O
system	O
is	O
used	O
by	O
the	O
Opera	B-Protocol
Mini	I-Protocol
browser	O
available	O
for	O
most	O
current	O
mobile	O
phones	O
.	O
</s>
<s>
Full	O
Internet	O
access	O
(	O
dependent	O
on	O
website	O
compatibility	O
with	O
Internet	B-Protocol
Explorer	I-Protocol
5	I-Protocol
)	O
using	O
data	O
compression	O
to	O
increase	O
effective	O
GSM	O
speeds	O
to	O
the	O
equivalent	O
of	O
around	O
70-80kbit/s	O
.	O
</s>
<s>
MP3	B-Application
files	I-Application
could	O
be	O
played	O
from	O
the	O
MMC	O
card	O
.	O
</s>
<s>
SMS	B-Device
and	O
Internet	O
email	O
integrated	O
into	O
one	O
inbox	O
.	O
</s>
<s>
A	O
number	O
of	O
Flash	B-Operating_System
4	I-Operating_System
games	O
were	O
included	O
that	O
made	O
use	O
of	O
the	O
device	O
's	O
touch-screen	O
interface	O
.	O
</s>
<s>
The	O
original	O
Pogo	O
was	O
based	O
on	O
the	O
Samsung	O
S3C44A0	O
SoC	O
with	O
an	O
ARM7	B-Architecture
core	O
at	O
33MHz	O
,	O
16	O
MB	O
of	O
DRAM	O
,	O
4	O
MB	O
of	O
Flash	B-Device
ROM	I-Device
,	O
320x240	O
Transflective	B-General_Concept
256-colour	I-General_Concept
LCD	I-General_Concept
(	O
Kyocera	O
)	O
,	O
Wavecom	O
GSM	O
module	O
,	O
Valence	O
Li-Ion	O
1860mAh	O
battery	O
and	O
Micronas	O
DSP	B-Architecture
for	O
audio	O
functions	O
.	O
</s>
<s>
The	O
OS	O
(	O
32-bit	O
non-preemptive	B-Operating_System
threaded	B-Application
)	O
was	O
written	O
for	O
high-performance	O
on	O
the	O
ARM	O
core	O
with	O
minimal	O
memory	O
footprint	O
,	O
and	O
was	O
around	O
700k	O
when	O
compiled	O
from	O
C++	B-Language
,	O
including	O
UI	O
data	O
files	O
.	O
</s>
<s>
It	O
featured	O
a	O
full	O
web-browser	O
,	O
including	O
JavaScript	B-Language
,	O
email	O
,	O
some	O
games	O
in	O
Flash	B-Operating_System
4	I-Operating_System
and	O
embedded	O
database	O
for	O
addresses	O
,	O
links	O
,	O
etc.	O
,	O
MP3	B-Application
playback	O
,	O
full	O
GSM	O
phone	O
functionality	O
and	O
local	O
"	O
client-server	O
"	O
design	O
with	O
a	O
UI	O
also	O
implemented	O
in	O
Flash	B-Operating_System
4	I-Operating_System
.	O
</s>
<s>
The	O
"	O
local	O
server	O
"	O
operated	O
in	O
such	O
a	O
way	O
that	O
all	O
machine	O
functions	O
-	O
making	O
a	O
phone	O
call	O
,	O
playing	O
a	O
sound	O
file	O
from	O
MMC	O
,	O
or	O
anything	O
else	O
,	O
were	O
implemented	O
as	O
small	O
C++	B-Language
"	O
servlets	O
"	O
that	O
the	O
UI	O
would	O
invoke	O
via	O
the	O
browser	O
-	O
the	O
only	O
UI	O
was	O
the	O
browser	O
,	O
there	O
was	O
no	O
other	O
"	O
GUI	O
"	O
library	O
exported	O
.	O
</s>
<s>
Between	O
handset	O
and	O
the	O
network	O
were	O
proprietary	O
protocols	O
(	O
see	O
patent	O
)	O
and	O
a	O
proxy	B-Application
that	O
looked	O
like	O
a	O
"	O
normal	O
"	O
browser	O
to	O
the	O
wider	O
internet	O
.	O
</s>
<s>
The	O
proxy	B-Application
carried	O
out	O
much	O
of	O
the	O
grunt-work	O
of	O
browsing	O
-	O
caching	O
,	O
JavaScript	B-Language
parsing	O
,	O
session	O
management	O
,	O
re-formatting	O
and	O
compression	O
-	O
and	O
together	O
with	O
the	O
handset	O
led	O
to	O
what	O
was	O
called	O
the	O
"	O
distributed	O
browser	O
"	O
model	O
,	O
with	O
UI	O
on	O
the	O
handset	O
driven	O
by	O
compressed	O
display	O
deltas	O
from	O
the	O
proxy	B-Application
.	O
</s>
<s>
It	O
was	O
to	O
have	O
featured	O
a	O
16-bit	O
colour	O
TFT	B-Device
LCD	I-Device
,	O
camera	O
,	O
Samsung	O
S3C440B0X	O
SoC	O
at	O
75MHz	O
,	O
16	O
MB	O
of	O
SDRAM	O
,	O
16	O
MB	O
of	O
Flash	B-Device
ROM	I-Device
and	O
enhanced	O
Wavecom	O
module	O
.	O
</s>
<s>
Macromedia	O
also	O
revised	O
the	O
terms	O
of	O
the	O
Flash	B-Operating_System
licence	O
,	O
so	O
Macromedia	B-Operating_System
Flash	I-Operating_System
was	O
removed	O
and	O
the	O
UI	O
replaced	O
with	O
an	O
HTML	B-Language
version	O
.	O
</s>
<s>
Sales	O
and	O
marketing	O
proved	O
problematic	O
with	O
O2	O
launching	O
the	O
very	O
first	O
Windows	B-Operating_System
Mobile	I-Operating_System
phone	O
,	O
the	O
XDA	B-Operating_System
,	O
and	O
combined	O
with	O
some	O
technical	O
issues	O
related	O
to	O
battery	O
performance	O
,	O
sales	O
failed	O
to	O
take	O
off	O
,	O
despite	O
a	O
very	O
enthusiastic	O
userbase	O
of	O
around	O
1200	O
customers	O
.	O
</s>
