<s>
The	O
Treo	B-Application
180	I-Application
is	O
a	O
dual-band	O
GSM	O
smartphone	B-Application
made	O
by	O
Handspring	O
.	O
</s>
<s>
It	O
features	O
a	O
full	O
keyboard	B-Device
and	O
shipped	O
with	O
Palm	B-Operating_System
OS	I-Operating_System
version	O
3.5.2H	O
.	O
</s>
<s>
Two	O
main	O
models	O
were	O
produced	O
,	O
the	O
180	O
with	O
a	O
thumb-type	O
keyboard	B-Device
and	O
the	O
180g	O
which	O
used	O
the	O
Graffiti	B-Application
handwriting	O
recognition	O
software	O
,	O
both	O
were	O
flip	O
form	O
factor	O
.	O
</s>
