This video demonstrates how you can use a WiiMote along with Compiz Fusion to do some pretty cool stuff.

Note that it is done all with the inbuilt accelerometer, and I'm using the 'Hack' WiiMote driver via uinput. There is an actual driver being developed by the freedesktop guys as we speak (And it works with MPX too :))

I didn't use the IR pointer because it's a pain to use with plugins that warp the pointer (Such as cube) and puts your pointer out of sync.

More info at smspillaz.wordpress.com