<s>
Sony	B-Operating_System
Ericsson	I-Operating_System
P990	I-Operating_System
is	O
a	O
smartphone	B-Application
and	O
the	O
successor	O
of	O
Sony	B-Language
Ericsson	I-Language
P910	I-Language
.	O
</s>
<s>
The	O
phone	O
uses	O
the	O
UIQ	B-Language
3	O
software	O
platform	O
,	O
which	O
is	O
based	O
upon	O
Symbian	B-Operating_System
OS	I-Operating_System
9.1	O
.	O
</s>
<s>
The	O
P990	B-Operating_System
has	O
a	O
numeric	O
keypad	B-Device
that	O
flips	O
open	O
to	O
reveal	O
a	O
full	O
QWERTY	O
keyboard	O
below	O
the	O
display	O
,	O
on	O
the	O
phone	O
itself	O
.	O
</s>
<s>
This	O
is	O
a	O
change	O
from	O
P910	B-Language
,	O
where	O
the	O
keyboard	O
is	O
on	O
the	O
flip	O
.	O
</s>
<s>
The	O
phone	O
is	O
a	O
UMTS	B-Protocol
(	O
3G	B-Architecture
)	O
and	O
tri-band	O
GSM	O
phone	O
supporting	O
video	O
calls	O
through	O
its	O
front	O
VGA	B-Protocol
camera	O
.	O
</s>
<s>
The	O
touchscreen	B-Device
displays	O
262,114	O
colours	O
(	O
18-bit	O
colour	O
depth	O
)	O
with	O
a	O
resolution	B-General_Concept
of	O
240x320	O
pixels	B-Algorithm
.	O
</s>
<s>
It	O
also	O
comes	O
with	O
a	O
2.0	O
Megapixel	B-Algorithm
camera	O
featuring	O
autofocus	O
and	O
an	O
FM/RDS	O
radio	O
.	O
</s>
<s>
The	O
P990	B-Operating_System
runs	O
the	O
Nexperia	O
PNX4008	O
ARM9	B-Architecture
208MHz	O
processor	O
from	O
Philips	O
,	O
which	O
also	O
includes	O
an	O
PowerVR	B-Device
MBX	O
GPU	O
.	O
</s>
<s>
The	O
screen	O
despite	O
a	O
smaller	O
length	O
(	O
2.8inch	O
)	O
than	O
its	O
predecessors	O
is	O
actually	O
larger	O
in	O
area	O
because	O
of	O
the	O
increased	O
resolution	B-General_Concept
.	O
</s>
<s>
The	O
phone	O
also	O
improves	O
over	O
the	O
P910	B-Language
by	O
including	O
support	O
for	O
Wi-Fi	O
,	O
allowing	O
users	O
to	O
connect	O
to	O
802.11b	O
wireless	O
networks	O
.	O
</s>
<s>
Additional	O
features	O
includes	O
RSS	O
feeds	O
,	O
online	O
video	O
streaming	O
,	O
Java	B-Language
ME	I-Language
support	O
and	O
Handwriting	O
recognition	O
.	O
</s>
<s>
P990	B-Operating_System
was	O
adopted	O
for	O
business	O
and	O
personal	O
use	O
.	O
</s>
<s>
Quickoffice	B-Application
comes	O
pre-installed	O
with	O
the	O
firmware	O
itself	O
.	O
</s>
<s>
P990	B-Operating_System
was	O
the	O
major	O
smartphone	B-Application
device	O
launched	O
after	O
P910	B-Language
.	O
</s>
<s>
It	O
had	O
the	O
latest	O
UIQ	B-Language
user	O
interface	O
3	O
,	O
which	O
was	O
completely	O
incompatible	O
with	O
previous	O
device	O
applications	O
,	O
such	O
as	O
those	O
of	O
the	O
P900	O
and	O
P910	B-Language
,	O
so	O
new	O
applications	O
had	O
to	O
be	O
written	O
.	O
</s>
<s>
The	O
major	O
issue	O
of	O
P990	B-Operating_System
was	O
RAM	O
,	O
which	O
was	O
much	O
less	O
(	O
64MB	O
)	O
,	O
of	O
which	O
device	O
used	O
48MB	O
in	O
start	O
up	O
(	O
OS	O
)	O
and	O
only	O
16MB	O
was	O
available	O
for	O
the	O
user	O
.	O
</s>
<s>
Network	O
hang	O
is	O
the	O
most	O
prominent	O
problem	O
seen	O
on	O
P990	B-Operating_System
.	O
</s>
