<s>
The	O
Treo	B-Application
90	I-Application
is	O
a	O
Palm	B-Operating_System
OS	I-Operating_System
PDA	B-Application
developed	O
by	O
Handspring	O
.	O
</s>
<s>
The	O
Treo	B-Application
90	I-Application
was	O
the	O
only	O
Treo	O
model	O
produced	O
without	O
an	O
integrated	O
cellular	O
phone	O
.	O
</s>
<s>
When	O
first	O
released	O
it	O
was	O
the	O
smallest	O
Palm	B-Operating_System
OS	I-Operating_System
device	O
on	O
the	O
market	O
.	O
</s>
<s>
The	O
Treo	B-Application
90	I-Application
features	O
a	O
12-bit	B-Device
standard	O
(	O
160x160	O
)	O
resolution	O
color	O
super-twisted	B-General_Concept
nematic	I-General_Concept
display	I-General_Concept
,	O
LED	O
backlighting	O
,	O
a	O
miniature	O
QWERTY	O
keyboard	B-Device
that	O
replaces	O
the	O
usual	O
Graffiti	O
on	O
other	O
PDAs	B-Application
,	O
an	O
infrared	O
port	O
and	O
an	O
SD	B-Device
card	I-Device
slot	O
.	O
</s>
<s>
The	O
original	O
Palm	B-Operating_System
OS	I-Operating_System
(	O
4.1H	O
)	O
lacks	O
SDIO	O
support	O
and	O
reportedly	O
has	O
trouble	O
formatting	O
128	O
megabyte	O
SanDisk	O
cards	O
.	O
</s>
<s>
The	O
Treo	B-Application
90	I-Application
Updater	O
addresses	O
this	O
problem	O
and	O
adds	O
some	O
other	O
edits	O
.	O
</s>
<s>
The	O
ROM	O
4.1H3	O
update	O
allows	O
the	O
use	O
of	O
SD	B-Device
Cards	I-Device
up	O
to	O
1GB	O
(	O
confirmed	O
)	O
.	O
</s>
<s>
Additionally	O
the	O
new	O
SDIO	O
capability	O
allows	O
users	O
to	O
expand	O
the	O
device	O
's	O
features	O
with	O
two	O
expansion	O
cards	O
:	O
the	O
Palm	O
Bluetooth	O
card	O
,	O
which	O
allows	O
the	O
Treo	B-Application
90	I-Application
to	O
access	O
the	O
Internet	O
,	O
email	O
and	O
messages	O
wirelessly	O
with	O
a	O
Bluetooth-enabled	O
mobile	O
phone	O
and	O
MARGI	O
Systems	O
Presenter-and-Go	O
which	O
connects	O
the	O
Treo	B-Application
90	I-Application
directly	O
to	O
digital	O
LCD	O
projectors	O
or	O
other	O
VGA	O
devices	O
to	O
show	O
business	O
presentations	O
stored	O
on	O
the	O
Treo	O
in	O
full	O
color	O
.	O
</s>
