<s>
The	O
Palm	B-Application
m500	I-Application
series	I-Application
of	O
handheld	O
personal	B-Application
digital	I-Application
assistants	I-Application
consisted	O
of	O
three	O
devices	O
:	O
the	O
Palm	B-Application
m500	I-Application
,	O
Palm	B-Application
m505	I-Application
,	O
and	O
Palm	B-Application
m515	I-Application
.	O
</s>
<s>
The	O
series	O
was	O
a	O
follow-up	O
to	O
the	O
popular	O
Palm	B-Application
V	I-Application
series	O
with	O
a	O
similar	O
,	O
though	O
slightly	O
shorter	O
,	O
footprint	O
and	O
form	O
factor	O
.	O
</s>
<s>
Like	O
the	O
Palm	B-Application
V	I-Application
,	O
the	O
series	O
had	O
metal	O
cases	O
(	O
although	O
the	O
m500	O
had	O
a	O
plastic	O
back	O
plate	O
)	O
and	O
a	O
160x160	O
resolution	B-General_Concept
screen	O
.	O
</s>
<s>
The	O
distinguishing	O
features	O
common	O
to	O
all	O
in	O
the	O
series	O
are	O
a	O
SD/MMC	O
expansion	O
slot	O
,	O
faster	O
processor	O
,	O
new	O
faster	O
USB	O
sync	O
interface	O
,	O
new	O
software	O
functionality	O
,	O
new	O
vibrating	O
alarms	O
,	O
new	O
indicator	O
light	O
,	O
and	O
a	O
mechanical	O
fastener	O
vs.	O
hot-glue	O
case	O
construction	O
.	O
</s>
<s>
The	O
Palm	B-Application
m500	I-Application
series	I-Application
of	O
Palm	O
Pilot	O
PDAs	B-Application
was	O
released	O
on	O
March	O
6	O
,	O
2001	O
.	O
</s>
<s>
Based	O
on	O
a	O
poll	O
conducted	O
by	O
Palm	O
Computing	O
(	O
formerly	O
a	O
division	O
of	O
3Com	O
)	O
,	O
it	O
was	O
determined	O
that	O
the	O
Palm	B-Application
V	I-Application
had	O
the	O
"	O
definitive	O
look	O
"	O
of	O
the	O
ideal	O
PDA	B-Application
.	O
</s>
<s>
All	O
of	O
the	O
Palm	B-Application
m500	I-Application
models	O
were	O
based	O
on	O
the	O
Palm	B-Application
V	I-Application
form	O
factor	O
.	O
</s>
<s>
As	O
with	O
most	O
other	O
Palm	O
devices	O
,	O
data	O
was	O
input	O
with	O
a	O
stylus	B-Device
pen	O
using	O
a	O
Graffiti	B-Application
method	O
.	O
</s>
<s>
Each	O
of	O
the	O
m500	O
series	O
models	O
featured	O
a	O
Secure	B-Device
Digital	I-Device
(	O
SD	B-Device
)	O
or	O
Multi	O
Media	O
Card	O
(	O
MMC	O
)	O
expansion	O
slot	O
.	O
</s>
<s>
The	O
SD/MMC	O
slot	O
allowed	O
for	O
additional	O
memory	O
upgrades	O
for	O
the	O
devices	O
,	O
as	O
well	O
an	O
expandable	O
platform	O
for	O
add-on	O
devices	O
.	O
</s>
<s>
The	O
m500	O
series	O
was	O
also	O
the	O
first	O
of	O
Palm	O
's	O
devices	O
to	O
incorporate	O
the	O
new	O
Universal	B-Application
Connector	I-Application
,	O
which	O
was	O
only	O
"	O
universal	O
"	O
until	O
the	O
Palm	O
T3	O
after	O
which	O
it	O
was	O
abandoned	O
.	O
</s>
<s>
In	O
addition	O
to	O
standard	O
m500	O
series	O
features	O
,	O
it	O
also	O
featured	O
a	O
16-bit	B-Device
color	O
frontlit	O
screen	O
.	O
</s>
