So...did I miss something here? I didn't watch the Nintendo conference, but isn't the vitality sensor a little gizmo you put on your finger, and it monitors your heart rate and blood oxygen content? If I am correct, than I think the OP is completely accurate. I mean think of it. NATAL only has voice and facial recognition, Wii now has vitals recognition. I mean, how cool would it be to sign in just by putting a clippy on your finger. And imagine, the Wii would be able to scale back the difficulty of the new Mario game if your pulse went up (obviously denoting stress). I think the 360 should implement something like this for online play. It could then sense when you were getting stressed from having to listen to that idiot who insists on singing along to a crappy song, and it could automatically mute the bastard!