Reminded me of Johnny Chung Lee and his Wiimote Project. found it months ago but have completely forgot. this is a great project as it is open source and also extremely cheap in comparison to other touch and interactive interfaces.
http://johnnylee.net/projects/wii/
kinda like minority report with the wall you control with the gloves.
http://www.codinghorror.com/blog/images/minority-report-ui.jpg