<s>
The	B-Operating_System
Wii	I-Operating_System
U	O
GamePad	B-Device
is	O
the	O
standard	O
game	B-Device
controller	I-Device
for	O
Nintendo	B-Operating_System
's	I-Operating_System
Wii	I-Operating_System
U	O
home	B-Device
video	I-Device
game	I-Device
console	I-Device
.	O
</s>
<s>
Incorporating	O
traits	O
from	O
tablet	B-Device
computers	I-Device
,	O
the	O
GamePad	B-Device
has	O
traditional	O
input	O
methods	O
(	O
such	O
as	O
buttons	O
,	O
dual	O
analog	B-Device
sticks	I-Device
,	O
and	O
a	O
D-pad	B-Device
)	O
,	O
touchscreen	B-Device
controls	O
,	O
and	O
motion	O
controls	O
.	O
</s>
<s>
The	O
touchscreen	B-Device
can	O
be	O
used	O
to	O
supplement	O
a	O
game	O
by	O
providing	O
alternate	O
,	O
second	O
screen	O
functionality	O
or	O
an	O
asymmetric	O
view	O
of	O
a	O
scenario	O
in	O
a	O
game	O
.	O
</s>
<s>
The	O
screen	O
can	O
also	O
be	O
used	O
to	O
play	O
a	O
game	O
strictly	O
on	O
the	O
GamePad	B-Device
screen	O
,	O
without	O
the	O
use	O
of	O
a	O
television	O
display	O
.	O
</s>
<s>
The	B-Operating_System
Wii	I-Operating_System
U	O
GamePad	B-Device
can	O
be	O
used	O
in	O
conjunction	O
with	O
other	O
controllers	O
compatible	O
with	O
the	O
console	O
,	O
such	O
as	O
the	B-Operating_System
Wii	I-Operating_System
Remote	O
Plus	O
,	O
Nunchuk	O
,	O
Wii	B-Operating_System
Balance	O
Board	O
,	O
and	O
the	O
more	O
conventional	O
Wii	B-Device
U	I-Device
Pro	I-Device
Controller	I-Device
.	O
</s>
<s>
During	O
development	O
of	O
the	B-Operating_System
Wii	I-Operating_System
console	O
,	O
video	O
game	O
designer	O
Shigeru	O
Miyamoto	O
brought	O
in	O
mobile	O
phones	O
and	O
controllers	O
for	O
automotive	B-Application
navigation	I-Application
systems	I-Application
for	O
inspiration	O
for	O
the	B-Operating_System
Wii	I-Operating_System
Remote	O
,	O
eventually	O
producing	O
a	O
prototype	O
that	O
resembled	O
a	O
cell	O
phone	O
.	O
</s>
<s>
Another	O
design	O
featured	O
both	O
an	O
analog	B-Device
stick	I-Device
and	O
a	O
touchscreen	B-Device
,	O
but	O
Nintendo	O
rejected	O
the	O
idea	O
of	O
a	O
touchscreen	B-Device
on	O
the	O
controller	O
,	O
"	O
since	O
the	B-Device
portable	I-Device
console	I-Device
and	O
living-room	O
console	O
would	O
have	O
been	O
exactly	O
the	O
same	O
"	O
.	O
</s>
<s>
Nintendo	O
's	O
development	O
team	O
had	O
determined	O
that	O
the	B-Operating_System
Wii	I-Operating_System
's	O
notification	O
light	O
did	O
not	O
provide	O
enough	O
information	O
to	O
be	O
useful	O
beyond	O
whether	O
it	O
had	O
received	O
content	O
or	O
not	O
.	O
</s>
<s>
With	O
the	B-Operating_System
Wii	I-Operating_System
U	O
's	O
Miiverse	O
social	O
networking	O
functionality	O
,	O
Iwata	O
also	O
likened	O
the	O
controller	O
's	O
screen	O
to	O
a	O
"	O
social	O
window	O
"	O
,	O
which	O
can	O
allow	O
users	O
to	O
remain	O
connected	O
even	O
if	O
they	O
are	O
not	O
playing	O
.	O
</s>
<s>
The	O
Nintendo	O
EAD	O
development	O
team	O
created	O
two	O
controller	O
prototypes	O
:	O
a	O
monitor	O
with	O
two	O
Wii	B-Device
Remotes	I-Device
glued	O
to	O
the	O
sides	O
,	O
and	O
a	O
display	O
attached	O
to	O
a	O
Wii	B-Device
Zapper	I-Device
.	O
</s>
<s>
In	O
a	O
prototype	O
shown	O
at	O
E3	O
,	O
the	O
controller	O
had	O
featured	O
circle	O
pads	O
similar	O
to	O
those	O
of	O
the	O
Nintendo	B-Operating_System
3DS	I-Operating_System
.	O
</s>
<s>
On	O
May	O
19	O
,	O
2012	O
,	O
a	O
photograph	O
of	O
a	O
near-final	O
version	O
of	O
the	O
controller	O
was	O
leaked	O
on	O
Twitter	B-Application
by	O
an	O
employee	O
of	O
TT	O
Games	O
,	O
revealing	O
a	O
wider	O
build	O
with	O
ergonomic	O
grips	O
,	O
a	O
redesigned	O
button	O
layout	O
,	O
and	O
analog	B-Device
sticks	I-Device
instead	O
of	O
circle	O
pads	O
.	O
</s>
<s>
On	O
June	O
3	O
,	O
2012	O
,	O
Nintendo	O
officially	O
unveiled	O
the	O
final	O
version	O
of	O
the	O
controller	O
,	O
named	O
"	O
Wii	B-Device
U	I-Device
GamePad	I-Device
"	O
,	O
in	O
a	O
video	O
presentation	O
preceding	O
E3	O
2012	O
.	O
</s>
<s>
The	O
GamePad	B-Device
's	O
primary	O
feature	O
is	O
its	O
,	O
FWVGA	O
(	O
854x480	O
)	O
,	O
resistive	B-Device
touchscreen	I-Device
display	O
,	O
which	O
can	O
be	O
controlled	O
with	O
either	O
fingers	O
or	O
an	O
included	O
stylus	O
.	O
</s>
<s>
The	O
screen	O
can	O
be	O
used	O
as	O
a	O
supplement	O
to	O
gameplay	O
to	O
provide	O
additional	O
functionality	O
that	O
can	O
be	O
controlled	O
using	O
the	O
screen	O
,	O
or	O
to	O
stream	O
gameplay	O
from	O
the	O
console	O
in	O
lieu	O
of	O
a	O
television	O
display	O
(	O
Off-TV	B-Device
Play	I-Device
)	O
.	O
</s>
<s>
The	O
controller	O
also	O
features	O
a	O
front-facing	O
camera	O
(	O
usable	O
for	O
video	B-Application
chat	I-Application
)	O
,	O
dual	O
analog	B-Device
sticks	I-Device
,	O
nine-axis	O
motion	O
detection	O
via	O
a	O
three-axis	O
accelerometer	O
,	O
three-axis	O
gyroscope	B-Application
and	O
a	O
three-axis	O
magnetometer	O
,	O
rumble	O
support	O
,	O
and	O
an	O
infrared	O
array	O
that	O
can	O
emulate	O
the	B-Operating_System
Wii	I-Operating_System
Sensor	O
Bar	O
.	O
</s>
<s>
The	O
GamePad	B-Device
also	O
supports	O
NFC	O
,	O
which	O
allows	O
developers	O
to	O
create	O
figurines	O
(	O
such	O
as	O
Nintendo	O
's	O
Amiibo	B-Device
figures	O
)	O
or	O
cards	O
that	O
can	O
wirelessly	O
interact	O
with	O
the	O
controller	O
,	O
and	O
allowed	O
Japanese	O
users	O
to	O
pay	O
for	O
software	O
on	O
the	O
Nintendo	O
eShop	O
using	O
prepaid	O
FeliCa-based	O
transit	O
cards	O
such	O
as	O
Suica	O
.	O
</s>
<s>
In	O
a	O
special	O
presentation	O
preceding	O
E3	O
2012	O
,	O
Nintendo	O
unveiled	O
more	O
details	O
about	O
the	O
GamePad	B-Device
;	O
including	O
its	O
ability	O
to	O
be	O
used	O
as	O
a	O
remote	B-Protocol
control	I-Protocol
for	O
a	O
television	O
with	O
the	O
Nintendo	O
TVii	O
app	O
,	O
and	O
the	O
ability	O
to	O
send	O
handwritten	O
messages	O
and	O
other	O
content	O
.	O
</s>
<s>
The	O
GamePad	B-Device
communicates	O
with	O
a	O
Wii	B-Device
U	I-Device
console	O
over	O
a	O
modified	O
Wi-Fi	O
protocol	O
designed	O
for	O
low-latency	O
transmission	O
,	O
establishing	O
its	O
connection	O
with	O
the	O
console	O
by	O
using	O
a	O
variant	O
of	O
the	O
WPS	B-Protocol
process	O
,	O
with	O
proprietary	O
transfer	O
protocol	O
and	O
software	O
co-developed	O
with	O
Broadcom	O
.	O
</s>
<s>
The	O
GamePad	B-Device
's	O
display	O
contents	O
are	O
streamed	O
as	O
video	O
from	O
the	O
console	O
using	O
a	O
custom	O
protocol	O
and	O
the	O
H.264	B-Application
video	O
codec	O
,	O
for	O
which	O
the	O
GamePad	B-Device
contains	O
a	O
hardware	O
decoder	O
.	O
</s>
<s>
Nintendo	O
's	O
first	O
presentation	O
of	O
the	O
controller	O
in	O
2011	O
led	O
to	O
confusion	O
upon	O
whether	O
the	B-Operating_System
Wii	I-Operating_System
U	O
would	O
support	O
the	O
use	O
of	O
multiple	O
GamePads	B-Device
.	O
</s>
<s>
A	O
Nintendo	O
spokesperson	O
stated	O
that	O
the	O
GamePad	B-Device
would	O
not	O
be	O
sold	O
individually	O
from	O
a	O
Wii	B-Device
U	I-Device
console	O
,	O
and	O
Shigeru	O
Miyamoto	O
had	O
not	O
ruled	O
out	O
the	O
possibility	O
of	O
using	O
multiple	O
GamePads	B-Device
with	O
a	O
single	O
console	O
—	O
but	O
also	O
felt	O
that	O
it	O
might	O
be	O
more	O
convenient	O
to	O
use	O
the	O
Nintendo	B-Operating_System
3DS	I-Operating_System
as	O
a	O
controller	O
in	O
this	O
scenario	O
as	O
well	O
—	O
implying	O
potential	O
compatibility	O
.	O
</s>
<s>
During	O
Nintendo	O
's	O
E3	O
2012	O
presentation	O
,	O
it	O
was	O
confirmed	O
that	O
Wii	B-Device
U	I-Device
games	O
could	O
theoretically	O
support	O
up	O
to	O
two	O
GamePads	B-Device
simultaneously	O
.	O
</s>
