<s>
The	O
Sony	B-Language
Ericsson	I-Language
P900	I-Language
is	O
a	O
Symbian	B-Operating_System
OS	I-Operating_System
v7.0	O
based	O
smartphone	B-Application
from	O
Sony	O
Ericsson	O
.	O
</s>
<s>
It	O
was	O
introduced	O
in	O
2003	O
and	O
is	O
the	O
successor	O
of	O
the	O
Sony	B-Language
Ericsson	I-Language
P800	I-Language
;	O
like	O
the	O
P800	O
,	O
the	O
P900	O
uses	O
the	O
UIQ	B-Language
platform	O
.	O
</s>
<s>
Like	O
other	O
Symbian-based	O
smartphones	B-Application
of	O
its	O
time	O
,	O
but	O
unlike	O
Ericsson	B-Language
R380	I-Language
,	O
the	O
P900	O
is	O
an	O
open	O
phone	O
.	O
</s>
<s>
A	O
UIQ	B-Language
2.1	O
SDK	B-Application
based	O
upon	O
Symbian	B-Operating_System
C++	B-Language
is	O
freely	O
available	O
from	O
the	O
Sony	O
Ericsson	O
developer	O
website	O
.	O
</s>
<s>
Additionally	O
,	O
the	O
P900	O
supports	O
applications	O
written	O
in	O
Java	B-Language
.	O
</s>
<s>
Because	O
of	O
this	O
openness	O
,	O
many	O
third-party	O
applications	O
exist	O
that	O
can	O
be	O
used	O
on	O
the	O
P900	O
and	O
other	O
UIQ	B-Language
phones	O
(	O
such	O
as	O
the	O
Motorola	O
A1000	O
and	O
BenQ	O
P30	O
)	O
.	O
</s>
<s>
Many	O
are	O
shareware	B-License
and	O
freeware	B-License
.	O
</s>
<s>
As	O
the	O
P900	O
uses	O
UIQ	B-Language
version	O
2.1	O
,	O
it	O
is	O
backwards	O
compatible	O
with	O
UIQ	B-Language
2.0	O
as	O
found	O
in	O
the	O
P800	O
.	O
</s>
<s>
It	O
,	O
like	O
the	O
P800	O
and	O
P910i	B-Language
,	O
has	O
an	O
ARM9	O
processor	B-General_Concept
clocked	O
at	O
156MHz	O
.	O
</s>
<s>
This	O
makes	O
the	O
phone	O
more	O
like	O
a	O
PDA	B-Application
,	O
but	O
still	O
usable	O
as	O
a	O
traditional	O
phone	O
.	O
</s>
<s>
The	O
P900	O
was	O
well	O
received	O
and	O
is	O
sometimes	O
considered	O
one	O
of	O
the	O
best	O
Symbian	B-Operating_System
OS	I-Operating_System
devices	O
to	O
have	O
been	O
released	O
.	O
</s>
<s>
An	O
updated	O
version	O
of	O
the	O
P900	O
,	O
the	O
Sony	B-Language
Ericsson	I-Language
P910i	I-Language
was	O
released	O
in	O
July	O
2004	O
.	O
</s>
<s>
The	O
P910i	B-Language
has	O
double	O
the	O
P900	O
's	O
memory	O
(	O
64	O
MB	O
,	O
versus	O
the	O
P900	O
's	O
32	O
MB	O
)	O
and	O
supports	O
Memory	O
Stick	O
Pro	O
Duo	O
,	O
allowing	O
the	O
phone	O
up	O
to	O
4GB	O
of	O
storage	O
on	O
a	O
single	O
card	O
.	O
</s>
<s>
The	O
P900	O
is	O
the	O
first	O
Sony	O
Ericsson	O
product	O
for	O
which	O
Research	O
in	O
Motion	O
's	O
BlackBerry	B-Operating_System
wireless	O
email	O
service	O
will	O
be	O
available	O
.	O
</s>
<s>
P905	O
is	O
the	O
unofficial	O
term	O
for	O
a	O
Sony	B-Language
Ericsson	I-Language
P900	I-Language
flashed	O
with	O
hacked	O
Sony	B-Language
Ericsson	I-Language
P910a	I-Language
firmware	B-Application
.	O
</s>
<s>
Flashing	O
the	O
firmware	B-Application
is	O
cheaper	O
than	O
purchasing	O
a	O
new	O
P910	B-Language
.	O
</s>
<s>
Though	O
this	O
may	O
seem	O
all	O
beneficial	O
,	O
there	O
may	O
be	O
the	O
drawback	O
of	O
not	O
being	O
able	O
to	O
connect	O
to	O
certain	O
Bluetooth	B-Protocol
headsets	O
(	O
however	O
,	O
this	O
is	O
rare	O
)	O
.	O
</s>
<s>
Though	O
the	O
P905	O
may	O
be	O
identical	O
to	O
the	O
P910	B-Language
in	O
software	O
terms	O
they	O
are	O
not	O
identical	O
in	O
hardware	O
terms	O
.	O
</s>
