<s>
The	O
second-generation	O
iPod	B-Device
Touch	I-Device
(	O
marketed	O
as	O
"	O
the	O
new	O
iPod	B-Device
touch	I-Device
"	O
,	O
and	O
colloquially	O
known	O
as	O
the	B-Device
iPod	B-Device
Touch	I-Device
2G	O
,	O
iPod	B-Device
Touch	I-Device
2	I-Device
,	O
or	O
iPod	B-Device
2	O
)	O
is	O
a	O
multi-touch	B-Application
mobile	B-Application
device	I-Application
designed	O
and	O
marketed	O
by	O
Apple	O
Inc	O
.	O
with	O
a	O
touchscreen-based	B-Device
user	B-Application
interface	I-Application
.	O
</s>
<s>
The	O
successor	O
to	O
the	O
1st-generation	B-Device
iPod	I-Device
Touch	I-Device
,	O
it	O
was	O
unveiled	O
and	O
released	O
at	O
Apple	O
's	O
media	O
event	O
on	O
September	O
9	O
,	O
2008	O
.	O
</s>
<s>
The	O
second-generation	O
iPod	B-Device
Touch	I-Device
was	O
only	O
sold	O
in	O
8GB	O
,	O
16GB	O
and	O
32GB	O
models	O
.	O
</s>
<s>
In	O
late	O
2009	O
,	O
Apple	O
introduced	O
a	O
revised	O
version	O
of	O
the	O
second-gen	O
iPod	B-Device
touch	I-Device
under	O
the	O
MC	O
model	O
name	O
,	O
which	O
was	O
only	O
available	O
in	O
an	O
8GB	O
variant	O
.	O
</s>
<s>
It	O
featured	O
a	O
newer	O
bootROM	O
version	O
which	O
patched	O
the	O
steaks4ce	O
bootROM	O
exploit	O
and	O
has	O
a	O
smaller	O
device	O
capacity	O
label	O
similar	O
to	O
that	O
of	O
the	B-Device
iPod	I-Device
touch	O
3rd	O
gen	O
.	O
</s>
<s>
It	O
fully	O
supports	O
iPhone	B-Operating_System
OS	I-Operating_System
3	I-Operating_System
but	O
has	O
limited	O
support	O
for	O
iOS	B-Operating_System
4	I-Operating_System
and	O
did	O
not	O
get	O
support	O
for	O
home	O
screen	O
wallpapers	O
,	O
multitasking	O
,	O
or	O
Game	O
Center	O
,	O
and	O
it	O
never	O
received	O
iOS	B-Operating_System
4.3	I-Operating_System
.	O
</s>
