<s>
The	O
HTC	B-Algorithm
Advantage	I-Algorithm
X7500	I-Algorithm
or	O
HTC	B-Algorithm
Athena	I-Algorithm
is	O
a	O
Windows	B-Operating_System
Mobile	I-Operating_System
5.0	O
Pocket	B-Device
PC	I-Device
Phone	I-Device
Edition	I-Device
based	O
smartphone	B-Application
designed	O
and	O
manufactured	O
by	O
HTC	B-Application
.	O
</s>
<s>
The	O
Athena	O
was	O
sold	O
by	O
T-Mobile	O
US	O
under	O
the	O
name	O
T-Mobile	B-Algorithm
Ameo	I-Algorithm
.	O
</s>
<s>
The	O
HTC	B-Algorithm
Advantage	I-Algorithm
X7501	O
is	O
the	O
Windows	B-Operating_System
Mobile	I-Operating_System
6.0	O
version	O
released	O
in	O
July	O
2007	O
as	O
an	O
OEM	O
unlocked	O
GSM	O
phone	O
by	O
CompUSA	O
and	O
Amazon.com	B-Application
primarily	O
for	O
the	O
North	O
American	O
market	O
as	O
a	O
Pocket	B-Device
PC	I-Device
.	O
</s>
<s>
It	O
does	O
not	O
have	O
the	O
second	O
camera	O
which	O
the	O
Advantage	O
X7500	B-Algorithm
has	O
for	O
videoconferencing	B-Application
.	O
</s>
<s>
The	O
HTC	B-Algorithm
Advantage	I-Algorithm
X7510	O
is	O
an	O
updated	O
version	O
of	O
the	O
X7500	B-Algorithm
,	O
featuring	O
Windows	B-Operating_System
Mobile	I-Operating_System
6.1	O
"	O
Manilla	O
"	O
Professional	O
and	O
solid	O
state	O
,	O
16GB	O
flash	O
drive	O
.	O
</s>
<s>
The	O
X7510	O
model	O
also	O
brings	O
back	O
the	O
secondary	O
VGA	B-Protocol
camera	O
on	O
the	O
screen	O
side	O
for	O
videoconferencing	B-Application
.	O
</s>
