<s>
Nokia	O
's	O
Series	B-Application
80	I-Application
(	O
formerly	O
Crystal	O
)	O
was	O
a	O
short-lived	O
mobile	O
software	O
platform	O
for	O
their	O
enterprise	O
and	O
professional	O
level	O
smartphones	O
,	O
introduced	O
in	O
2000	O
.	O
</s>
<s>
It	O
uses	O
the	O
Symbian	B-Operating_System
OS	I-Operating_System
.	O
</s>
<s>
Common	O
physical	O
properties	O
of	O
this	O
Symbian	B-Operating_System
OS	I-Operating_System
user	O
interface	O
platform	O
are	O
a	O
screen	O
resolution	O
of	O
640×200	O
pixels	O
and	O
a	O
full	O
QWERTY	O
keyboard	O
.	O
</s>
<s>
Series	B-Application
80	I-Application
used	O
the	O
large	O
size	O
of	O
the	O
Communicator	O
screens	O
to	O
good	O
effect	O
,	O
but	O
software	O
had	O
to	O
be	O
developed	O
specifically	O
for	O
it	O
,	O
for	O
a	O
relatively	O
small	O
market	O
.	O
</s>
<s>
The	O
final	O
Series	B-Application
80	I-Application
device	O
was	O
the	O
Nokia	B-Language
9300i	I-Language
,	O
announced	O
in	O
2005	O
and	O
shipped	O
in	O
2006	O
.	O
</s>
<s>
Nokia	O
used	O
S60	B-Language
3rd	I-Language
Edition	I-Language
instead	O
of	O
the	O
Series	B-Application
80	I-Application
platform	O
on	O
its	O
final	O
"	O
Communicator	O
"	O
branded	O
device	O
,	O
the	O
Nokia	B-Language
E90	I-Language
Communicator	I-Language
,	O
released	O
in	O
2007	O
.	O
</s>
