A victim of its own success, indeed: Nintendo has some advice:
Do not let go of the remote during game play. For example, in a game like Wii Sports bowling, the ball is thrown by simply releasing the B button on the remote, not by letting go of the remote! Hold the remote securely and avoid excessive motion during game play. If your hands become moist, stop and dry your hands. Excessive motion may cause you to let go of the remote and may break the wrist strap.
I fully expect Wiimote tossing to replace the discuss at the next Olympic games. In related news, WalMart had Wiis for about ten seconds this morning. I didn’t even try.
UPDATE:
[In] Wii Sports bowling, the ball is thrown by simply releasing the B Button on the remote, not by letting go of the remote!”
ROFLMAO