<s>
The	O
Android	B-Application
Dev	I-Application
Phone	I-Application
(	O
ADP	O
)	O
is	O
a	O
SIM-unlocked	O
and	O
bootloader	B-Application
unlocked	O
Android	B-Application
device	O
that	O
is	O
designed	O
for	O
advanced	O
developers	O
.	O
</s>
<s>
The	B-Application
Google	I-Application
Nexus	B-Device
series	I-Device
was	O
the	O
de	O
facto	O
successor	O
of	O
Android	B-Application
Development	O
Phones	O
,	O
with	O
the	B-Application
Google	I-Application
Pixel	O
series	O
coming	O
after	O
.	O
</s>
<s>
On	O
December	O
5	O
,	O
2008	O
,	O
Google	B-Application
announced	O
the	O
Android	B-Application
Dev	I-Application
Phone	I-Application
1	O
,	O
a	O
version	O
of	O
the	O
HTC	B-Application
Dream	I-Application
.	O
</s>
<s>
The	O
Android	B-Application
Dev	I-Application
Phone	I-Application
1	O
was	O
a	O
SIM-unlocked	O
and	O
bootloader	B-Application
unlocked	O
device	O
that	O
was	O
designed	O
for	O
advanced	O
developers	O
.	O
</s>
<s>
The	O
device	O
shipped	O
with	O
a	O
system	O
image	O
that	O
was	O
fully	O
compatible	O
with	O
Android	B-Application
1.0	O
.	O
</s>
<s>
It	O
was	O
possible	O
to	O
use	O
any	O
SIM	O
in	O
the	O
device	O
and	O
one	O
could	O
flash	O
custom	O
Android	B-Application
builds	O
that	O
would	O
work	O
with	O
the	O
unlocked	O
bootloader	B-Application
.	O
</s>
<s>
Unlike	O
the	O
bootloader	B-Application
on	O
retail	O
devices	O
,	O
the	O
bootloader	B-Application
on	O
the	O
Android	B-Application
Dev	I-Application
Phone	I-Application
1	O
did	O
not	O
enforce	O
signed	O
system	O
images	O
.	O
</s>
<s>
The	O
Android	B-Application
Dev	I-Application
Phone	I-Application
1	O
also	O
appealed	O
to	O
developers	O
who	O
live	O
outside	O
T-Mobile	O
geographies	O
.	O
</s>
<s>
Google	B-Application
stated	O
that	O
"	O
The	O
Android	B-Application
Dev	I-Application
Phone	I-Application
1	O
devices	O
are	O
not	O
intended	O
for	O
non-developer	O
end-users	O
.	O
</s>
<s>
Because	O
the	O
device	O
can	O
be	O
configured	O
with	O
system	O
software	O
not	O
provided	O
by	O
or	O
supported	O
by	O
Google	B-Application
or	O
any	O
other	O
company	O
,	O
end-users	O
operate	O
these	O
devices	O
at	O
their	O
own	O
risk.	O
"	O
</s>
<s>
Applications	O
developed	O
for	O
distribution	O
on	O
Google	B-Application
Play	O
allow	O
the	O
developer	O
to	O
enable	O
copy	O
protection	O
which	O
prevents	O
the	O
end	O
user	O
from	O
copying	O
the	O
application	O
from	O
the	O
phone	O
.	O
</s>
<s>
Because	O
the	O
Android	B-Application
Dev	I-Application
Phone	I-Application
allows	O
unrestricted	O
access	O
to	O
the	O
OS	O
,	O
this	O
copy	O
protection	O
is	O
disabled	O
.	O
</s>
<s>
If	O
the	O
developer	O
enables	O
copy	O
protection	O
on	O
their	O
application	O
,	O
then	O
the	O
application	O
does	O
not	O
appear	O
on	O
Google	B-Application
Play	O
for	O
the	O
Dev	O
Phone	O
.	O
</s>
<s>
The	O
Android	B-Application
Dev	I-Application
Phone	I-Application
2	O
was	O
a	O
hardware	O
unlocked	O
version	O
of	O
the	O
HTC	B-Application
Magic	I-Application
.	O
</s>
<s>
The	O
Android	B-Application
Dev	I-Application
Phone	I-Application
2	O
was	O
a	O
SIM-unlocked	O
and	O
bootloader	B-Application
unlocked	O
device	O
that	O
was	O
designed	O
for	O
advanced	O
developers	O
.	O
</s>
<s>
The	O
device	O
shipped	O
with	O
a	O
system	O
image	O
that	O
was	O
fully	O
compatible	O
with	O
Android	B-Application
1.6	O
.	O
</s>
<s>
It	O
was	O
possible	O
to	O
use	O
any	O
SIM	O
in	O
the	O
device	O
and	O
one	O
could	O
flash	O
custom	O
Android	B-Application
builds	O
that	O
would	O
work	O
with	O
the	O
unlocked	O
bootloader	B-Application
.	O
</s>
<s>
Unlike	O
the	O
bootloader	B-Application
on	O
retail	O
devices	O
,	O
the	O
bootloader	B-Application
on	O
the	O
Android	B-Application
Dev	I-Application
Phone	I-Application
2	O
does	O
not	O
enforce	O
signed	O
system	O
images	O
.	O
</s>
<s>
The	O
Android	B-Application
Dev	I-Application
Phone	I-Application
2	O
should	O
also	O
appealed	O
to	O
developers	O
who	O
live	O
outside	O
T-Mobile	O
geographies	O
.	O
</s>
