Hi all,
I have a tip to put more "awe" to your already cool Whiteboard project.
http://www.artrage.com/What's brilliant about this software, is that it allows you to paint, draw, airbrush or "charcoal" your creativity on the wall!
It mimics the physical quality of the tool you're using, like, paint, including viscosity and the way colours blend when you paint through it, or scrape it.
The interface is very easy to use with the IR-pen as well!
Try it, the demo is free to use, unlimited. Some 'pro' features are disabled for the commercial product, but it's otherwise a complete program without limitations.
Every time I'm asked to "demo" the Wiimote Whiteboard, as soon as I'm "painting on the wall" with this software I hear people gasp.
:-)
Have fun!!