Borkachev you don't have to buy a nunchuck, and the Wii can do position sensing in 3d space. Youtube it, I'm confused as to why there are PS3 owners like you who actually like this idea (or even Xbox). With the low amount of games on PS3 already has you'd think Sony would step up and make more games. If they place their top devs on this that means you're best games now require you to buy a peripheral that might never be used. If they put their less talented devs than the whole thing is a waste of time.
If you ask me both ways are a waste of time, would you rather them have their first string team (like the God of War team) create a casual friendly game to attract an expanded audience (that might not work), or do you want God of War 3?