"Because of the interaction of the game, I get the physical sensation of playing tennis," Pope explained later. "It really works. It can fool me into thinking that I'm doing what's happening on the screen."
Link from "Stroke victims find 'Wiihab'"
Full link : http://www.startribune.com/459/story/1349096.html
To be honest, they are the best looking wiimote/nuchuck shells that i have seen, but i would never buy them.
What is the guy behind the camera doing ? It must be really funny, because the guy on screen is smiling way too much.