From some time back I had the feeling that Micro wanted Kinect to be a hit so that they could have a platform with its own properties that could hardly be imitated by the other consoles. This way they would produce software that by its own nature would force exclusivity and would save them the trouble of buying time exclusives and so forth. I want Natal to be a hit so that this becomes Micro's focus, as motion has been Nintendo's.
Nintendo is selling their IPs to Microsoft and this is true because:
http://gamrconnect.vgchartz.com/thread.php?id=221391&page=1







