How to build a multi-touch display

Found this and had to post it (placed it here cause I didn't know where else to put it)

so it seems all you would need is a lcd projector, plexiglass, ir leds, webcam(with some modification), and a little work to get a multi-touch display.

And it looks simple to build!

COOOOOOOOOOL!!!!!
http://www.instructables.com/id/EJIXKOEF3ER7VN5/

there's also a link to get some programs to run on it.

thats is pretty dam cool +rep, but it doesn't look too accurate at times

There's a guy here in South Africa who built a multi touch display. Pretty simple actually :)

woah, it's a deglamorized version of the priceless microsoft tables :oP