<s>
TouchFLO	B-Operating_System
3D	I-Operating_System
is	O
a	O
graphical	B-Application
user	I-Application
interface	I-Application
designed	O
by	O
HTC	O
.	O
</s>
<s>
It	O
is	O
used	O
in	O
the	O
HTC	O
Touch	O
Family	O
of	O
Pocket	B-Device
PCs	I-Device
and	O
was	O
preceded	O
by	O
TouchFLO	O
.	O
</s>
<s>
TouchFLO	B-Operating_System
3D	I-Operating_System
has	O
been	O
ported	O
to	O
Windows	B-Operating_System
Mobile	I-Operating_System
and	O
Android	B-Application
,	O
and	O
is	O
used	O
in	O
the	O
HTC	O
Touch	O
Diamond	O
,	O
HTC	O
Touch	O
Pro	O
,	O
HTC	O
Touch	O
HD	O
,	O
HTC	O
MAX	O
4G	O
,	O
HTC	O
Touch	O
Diamond2	O
and	O
HTC	O
Touch	O
Pro2	O
.	O
</s>
<s>
From	O
the	O
HTC	B-Application
Hero	I-Application
and	O
HTC	O
HD2	O
onwards	O
,	O
TouchFLO	B-Operating_System
3D	I-Operating_System
has	O
been	O
heavily	O
extended	O
and	O
is	O
now	O
being	O
referred	O
to	O
,	O
along	O
with	O
other	O
usability	O
improvements	O
,	O
as	O
HTC	B-Application
Sense	I-Application
.	O
</s>
<s>
The	O
HTC	O
Touch2	O
runs	O
a	O
version	O
of	O
TouchFLO	O
2D	O
that	O
is	O
similar	O
in	O
style	O
to	O
HTC	B-Application
Sense	I-Application
.	O
</s>
<s>
The	O
Today	O
screen	O
plugin	O
is	O
the	O
main	O
aspect	O
of	O
TouchFLO	B-Operating_System
3D	I-Operating_System
,	O
and	O
consists	O
of	O
several	O
tabs	O
,	O
which	O
can	O
be	O
viewed	O
by	O
sliding	O
a	O
finger	O
along	O
the	O
bottom	O
bar	O
or	O
touching	O
one	O
of	O
the	O
visible	O
icons	O
.	O
</s>
<s>
On	O
the	O
Touch	O
Diamond2	O
and	O
Touch	O
Pro2	O
,	O
when	O
you	O
select	O
a	O
contact	O
,	O
TouchFLO	B-Operating_System
3D	I-Operating_System
tabs	O
related	O
to	O
that	O
contact	O
appear	O
:	O
</s>
<s>
Internet	O
-	O
Displays	O
a	O
link	O
to	O
open	O
the	O
Opera	O
web	O
browser	O
,	O
bookmarks	O
to	O
favorite	O
websites	O
,	O
and	O
a	O
built-in	O
YouTube	B-General_Concept
application	O
.	O
</s>
<s>
If	O
the	O
right	O
softkey	B-General_Concept
is	O
touched	O
,	O
it	O
will	O
bring	O
up	O
a	O
small	O
2	O
tab	O
"	O
TouchFLO	O
"	O
menu	O
to	O
view	O
markets	O
and	O
individual	O
companies	O
.	O
</s>
<s>
The	O
library	O
,	O
which	O
can	O
be	O
accessed	O
pressing	O
the	O
Left	O
Softkey	B-General_Concept
,	O
also	O
uses	O
the	O
TouchFLO	B-Operating_System
3D	I-Operating_System
interface	O
to	O
allow	O
users	O
to	O
sort	O
music	O
by	O
:	O
</s>
<s>
Programs	B-Application
-	O
Displays	O
a	O
grid	O
of	O
18	O
programs	B-Application
that	O
the	O
user	O
can	O
choose	O
to	O
allow	O
them	O
to	O
launch	O
programs	B-Application
quickly	O
.	O
</s>
<s>
Each	O
tab	O
has	O
two	O
soft	B-General_Concept
keys	I-General_Concept
which	O
provide	O
access	O
to	O
functions	O
associated	O
with	O
a	O
tab	O
or	O
tab	O
customisation	O
.	O
</s>
<s>
TouchFLO	B-Operating_System
3D	I-Operating_System
debuted	O
in	O
2008	O
on	O
the	O
HTC	O
Touch	O
Diamond	O
.	O
</s>
<s>
It	O
may	O
be	O
accessed	O
by	O
opening	O
the	O
keyboard	O
while	O
viewing	O
TouchFLO	B-Operating_System
3D	I-Operating_System
.	O
</s>
<s>
Also	O
,	O
from	O
the	O
Touch	O
HD	O
onwards	O
,	O
TouchFLO	B-Operating_System
3D	I-Operating_System
was	O
designed	O
for	O
WVGA	O
screens	O
rather	O
than	O
VGA	B-Protocol
screens	O
.	O
</s>
<s>
Also	O
,	O
a	O
3rd	O
party	O
TouchFLO	B-Operating_System
3D	I-Operating_System
clone	O
,	O
called	O
,	O
is	O
available	O
for	O
many	O
other	O
devices	O
.	O
</s>
