Look you guys, if the game is fun, I will play it in my home (with the blinds closed) and have fun. Buy why the hell do you think SONY PS products became so popular? Because SONY knows how to sell, and they know how to sell image. The main reason that many people don't buy into GC is because it is not as 'cool' as the other systems. It is true, image is big. SONY knows that people want to try to look cool, if it is listening to music or watching movies or playing video games. I am just saying that people are not going to want to sit in there room with 3 friends and wave their arms like birds in some game like a bunch of silly looking kids.
I get lots of physical activity myself already so let that tired argument rest. Like I said I think the idea is neet, but I think it is not really going to work very well for long time gamers like Nintendo wants us to believe.