@http://www.usatoday.com/tech/gaming/2007-07-24-wii-therapy_N.htm
"It's good for my hand-eye coordination," says Stephanie Mezynski, who has been using the Wii as part of her rehab to recover from a paralyzing episode with multiple sclerosis. "It works."
See it's more that just a game machine too. It's a medical device.