<s>
The	O
Touch	B-Application
Book	I-Application
is	O
a	O
portable	O
computing	O
device	O
that	O
functions	O
as	O
a	O
netbook	B-Device
,	O
and	O
a	O
tablet	B-Device
computer	I-Device
.	O
</s>
<s>
Its	O
designers	O
stated	O
at	O
launch	O
that	O
it	O
is	O
the	O
first	O
netbook	B-Device
featuring	O
a	O
detachable	O
keyboard	O
with	O
a	O
long	O
battery	O
life	O
(	O
more	O
than	O
10	O
hours	O
)	O
.	O
</s>
<s>
It	O
is	O
based	O
on	O
the	O
ARM	B-Architecture
TI	O
OMAP3530	B-Device
processor	O
(	O
taking	O
advantage	O
of	O
the	O
Beagleboard	B-Application
and	O
existing	O
open	B-Application
source	I-Application
software	I-Application
)	O
and	O
features	O
a	O
touchscreen	B-Device
.	O
</s>
<s>
After	O
much	O
speculation	O
on	O
the	O
community	O
forum	O
,	O
a	O
revised	O
v.2	O
Touch	B-Application
Book	I-Application
and	O
new	O
Smart	O
Book	O
product	O
were	O
announced	O
.	O
</s>
<s>
The	O
Smart	O
Book	O
is	O
based	O
on	O
the	O
BeagleBoard-xM	O
design	O
.	O
</s>
<s>
The	O
Touch	B-Application
Book	I-Application
is	O
a	O
netbook	B-Device
and	O
a	O
touch	O
tablet	B-Device
device	I-Device
.	O
</s>
<s>
It	O
features	O
a	O
detachable	O
keyboard	O
,	O
a	O
removable	O
back	O
cover	O
to	O
access	O
the	O
electronics	O
of	O
the	O
device	O
,	O
and	O
several	O
Linux	B-Operating_System
distributions	O
shipped	O
by	O
default	O
and	O
offered	O
via	O
a	O
multiboot	O
system	O
.	O
</s>
<s>
The	O
default	O
operating	B-General_Concept
system	I-General_Concept
launched	O
is	O
a	O
custom	O
Linux	B-Application
OS	I-Application
based	O
on	O
Ångström	B-Language
,	O
being	O
custom	O
themed	O
to	O
fit	O
the	O
small	O
form	O
factor	O
.	O
</s>
<s>
Since	O
2010	O
,	O
the	O
Touch	B-Application
Book	I-Application
comes	O
with	O
a	O
multi-boot	O
graphical	O
interface	O
,	O
allowing	O
users	O
to	O
run	O
also	O
Ubuntu	B-Operating_System
and	O
Android	B-Application
.	O
</s>
<s>
Users	O
can	O
install	O
other	O
OSes	O
like	O
Gentoo	B-Application
and	O
RISC	B-Operating_System
OS	I-Operating_System
.	O
</s>
<s>
Touch	B-Application
Book	I-Application
's	O
major	O
intended	O
uses	O
are	O
media	O
viewing	O
and	O
web	O
browsing	O
,	O
although	O
more	O
power-hungry	O
applications	O
such	O
as	O
OpenOffice.org	B-Application
are	O
available	O
on	O
the	O
device	O
.	O
</s>
<s>
The	O
Touch	B-Application
Book	I-Application
ships	O
standard	O
graphics	O
libraries	O
such	O
as	O
OpenGL	B-Application
ES	I-Application
and	O
SDL	B-Operating_System
.	O
</s>
<s>
In	O
addition	O
to	O
this	O
open	O
hardware	O
approach	O
,	O
the	O
Touch	B-Application
Book	I-Application
fully	O
relies	O
on	O
open	B-Application
source	I-Application
software	I-Application
.	O
</s>
<s>
A	O
Git	B-Application
repository	O
of	O
the	O
entire	O
OS	B-General_Concept
is	O
currently	O
available	O
,	O
allowing	O
for	O
download	O
of	O
the	O
latest	O
kernel	B-Operating_System
source	O
as	O
well	O
as	O
the	O
different	O
root	O
file	O
systems	O
.	O
</s>
<s>
Other	O
single-board	B-Device
computers	I-Device
using	O
OMAP3500	O
series	O
processors	O
include	O
OSWALD	O
,	O
Beagle	B-Application
Board	I-Application
,	O
IGEPv2	B-Device
,	O
Pandora	B-Device
and	O
Gumstix	B-Application
Overo	O
series	O
.	O
</s>
<s>
Since	O
launch	O
of	O
the	O
device	O
in	O
March	O
2009	O
,	O
several	O
similar	O
devices	O
have	O
come	O
up	O
in	O
early	O
2010	O
,	O
such	O
as	O
the	O
Freescale	O
tablet	B-Device
reference	O
design	O
or	O
the	O
Lenovo	O
U1	O
IdeaPad	O
.	O
</s>
