<s>
The	O
Android	B-Application
Developer	I-Application
Challenge	I-Application
(	O
ADC	O
)	O
was	O
launched	O
by	O
Google	B-Application
in	O
2008	O
,	O
with	O
the	O
aim	O
of	O
providing	O
awards	O
for	O
high-quality	O
mobile	O
applications	O
built	O
on	O
the	O
Android	O
platform	O
.	O
</s>
<s>
Android	O
is	O
a	O
software	O
stack	O
for	O
mobile	O
devices	O
that	O
includes	O
an	O
operating	B-General_Concept
system	I-General_Concept
,	O
middleware	B-General_Concept
and	O
key	O
applications	O
.	O
</s>
<s>
The	O
Android	O
SDK	B-Application
provides	O
the	O
tools	O
and	O
APIs	B-General_Concept
necessary	O
to	O
begin	O
developing	O
applications	O
that	O
run	O
on	O
Android-powered	O
devices	O
.	O
</s>
<s>
Android	B-Application
Developer	I-Application
Challenge	I-Application
was	O
a	O
competition	O
for	O
the	O
most	O
innovative	O
applications	O
for	O
Android	O
.	O
</s>
<s>
Google	B-Application
offered	O
US$10	O
million	O
in	O
prizes	O
,	O
distributed	O
between	O
ADC	O
I	O
and	O
ADC	O
II	O
.	O
</s>
<s>
Google	B-Application
selected	O
the	O
judges	O
from	O
the	O
member	O
organizations	O
of	O
the	O
Open	O
Handset	O
Alliance	O
,	O
Google	B-Application
and	O
mobile	O
experts	O
.	O
</s>
<s>
The	O
Android	B-Application
Developer	I-Application
Challenge	I-Application
was	O
first	O
announced	O
in	O
January	O
,	O
with	O
submissions	O
being	O
accepted	O
from	O
2	O
January	O
to	O
14	O
April	O
2008	O
.	O
</s>
<s>
Along	O
with	O
the	O
public	O
ranking	O
,	O
a	O
team	O
of	O
Google-selected	O
judges	O
evaluated	O
the	O
applications	O
.	O
</s>
<s>
Google	B-Application
announced	O
the	O
top	O
winners	O
of	O
ADC	O
II	O
on	O
November	O
30	O
,	O
with	O
SweetDreams	O
,	O
What	O
the	O
Doodle	O
!	O
?	O
</s>
