It's already outselling Wii/PS3/Xbox 360 in aligned launches:

8 weeks worldwide:

Kinect: 5,407,803

Kinect is completely destroying Eye Toy in aligned launches, despite having a far smaller userbase. I think this happened because a lot of people were hungry for something a little new, and advertizing kicked in really fast. In Americas, Kinect's 8 weeks has already outsold eyetoy's American lifetime sales.

I predict that Kinect adventures will go on to outsell all other 360 software. The strong momentum of the game should continue into early 2011 and shoot back up for the holidays, and this is all happening despite a very weak Japanese market. Europe and Americans are loving this so much. I think the reason for all this happening is that Kinect was produced by the casual audience brought to gaming by the wii, and that 360 is now sharing a similar audience to the console leader this gen.

Anyway, to all the people who thought Kinect would "Fail", "just be a fad", those people who said "360 userbase is too small", "It has bad reviews", "wii is the new king of gaming", "casual audience is on a decline", blah blah blah blah blah...

I know this thread is similar to the GT5 one but since that didn't get reported I guess this one would be alright :) enjoy!