Here's a video of the Wiimote being used as a wireless Bluetooth mouse via the GlovePIE software. As of now, there's no literal pointing on the screen; if you tilt it up, the cursor travels up slowly, and to move it left and right, you have to roll the controller to the side. Screw this talk of minesweeper: what we want is full FPS support.

Wiimote as Windows Mouse: Rediscover Minesweeper [Destructoid]