I'm expect everyone is familiar with the Johnny Lee Wii projects.

And most have probably also seen the Foldable Display Simulation video.

However if anyone has not seen them yet, follow the links they are worth seeing.  In fact it's been on my to do list to try and do some object tracking / projection tracking for some time.   And the foldable display video shows it working surprisingly well, and projecting on some of the surfaces that we have found most fun and interesting in our theatrical work (Fans and Umbrellas).

Anyway the upshot is that I got myself a wii remote and am starting to play around.   I'm working with Kate Brehm on a show (do you copy) with a lot of hand held movable screens that it would be great to track in this way.

I'm also interested in using the tracking in conjunction with some tablet PC's that I have used on stage as movable screens.

Anyway so far nothing of my own to show, I'm just exploring the tools and demos out there for the Wii.  But I just wanted to point out the Foldable Display demo, and get started posting about tracking.  I'll try and post some reviews of the software I try out, and some comparison of using the Wii for tracking vs EyesWeb and the eyes actor in Isadora.  There are many other options of course but those are the ones I have used in the past and that should do for some breadth to start with.
I do also have a P5 glove with some hardware IR tracking that I may bust out for comparison as well, and the Sony EVI D30 with built in color tracking, but neither seem right for this use or exactly comparable.