MultiTouch Ltd's 46-inch panel accepts unlimited touch inputs, we put it to the test (video hands-on) MultiTouch Ltd has been at this IR-based multitouch thing since 2007 and it's hit CES in force this week. Sure, the current 46-inch model requires 12 inches of depth -- in order to provide sufficient space for the infrared cameras embedded in its back to capture the whole, ahem, surface -- but hav