Wii - 8m

X360 - 14m

PS3 - 12.5m

3DS - 20m

Vita - 8.5m

WiiU - 2.5m

DS - 5.5m

PSP - 4m

I think the 360 will definitely get a price cut, so it'll sell roughly the same as 2011. PS3 probably won't get a price cut, so I expect it to be down around 1.5 - 2m.

Wii 6.5 Million
Xbox 360 11.5 Million
PS3 13.0 Million

3DS 18 Million
Vita 9.5 Million

WiiU 2.5 Million

DS 3.0 Million
PSP 4.5 Million

Wii: 6.5 Million. - Now it doesn't even have Zelda.
PS3: 12 Million. - No price drop.
360: 14 Million. - Star Wars + Kinect + Halo + Price drop.
3DS: 19 Million. - Incredible line-up from the start.
Vita: 9 Million. - 3DS is going to consume it, however, it has a good line-up from the very beginning, something the 3DS, sadly, lacked.
DS: 4.5 Million. - 3DS is getting the whole attention now, but a price cut will help.
PSP: 3 Million. - Will become irrelevant in America, Japan will slowly adapt to Vita and it will only keep selling in the steady, smaller regions it always sells well.

It was a typo; it's supposed to be 7.5 million.  Seece is already aware of it.

Uh chuck in :

5M DS
7M PSP

for me please.

GTA 5 FW (PS360):

6M

Mass Effect 3 FW (PS360):

1,2 - 1.4M

might as well join

Xbox 360: 13 million
PS3: 12 million
Wii: 7 million

WiiU: 1 million

3DS: 21 million
PSVita: 8 million
PSP: 4 million
DS: 4 million

Starhawk to sell 2 million by end of the year (I hopes so at least :P)
PSVita to have a good lanch in NA and Europe, only to collapse just like the 3DS did
Xbox 360 price cut this year
No new Sony or Microsoft consoles this E3

10 Spots left

THWBTHGFOAT(EJCM)

Wii: 7.5 million (last legs)

360: 11 million (way down yoy)

PS3: 11.5 million (way down yoy)

DS: 4.5 million (grinding to a halt)

PSP: 3 million (same as above)

3DS: 20 million (good year, 2013 will be the peak year, handheld market is moving very fast)

Vita: 8.8 million (decent but still no Nintendo)

Wii U: 3.7 million (frontloaded near holiday launch, this depends heavily on launch price though, mine takes into account a launch price of around 350$)

Weird I though I already posted here but can't find it now.

Wii: 6,5 M
PS2: 5 M
PS3: 15 M
X360: 14 M
3DS: 18 M
PSV: 8,5 M
PSP: 4 M