Magic Wall touchscreen. Apparently, Microsoft has come up with its own version of the board -- essentially a Surface flipped on its side and mounted. The device, known as the TouchWall, joins a handful of finger-friendly prototypes that Microsoft Research is working on (including a spherical unit we assume will be used strictly for world domination campaigns). The 4-foot-by-6-foot "wall" uses inexpensive infrared sensors and a rear-mounted camera -- which can be added to a variety of surfaces -- in order to create the hands-on experience. The company appears to be targeting this as a low cost "intelligent whiteboard" solution, so hopefully they'll be turning up in schools, small businesses, and the Engadget offices soon. Check the video after the break to see it all in action.