This Light Touch tech feeds off the projector keyboard products we’ve seen before, but extends it to include multitouch functionality. We’re still not totally convinced that this type of product has a future until they can improve a) the accuracy and responsiveness and b) the interference problems with ambient lighting, but we’re willing to suspend belief and cheer it on, if only because it would be cool to use one of these in earnest one day.

 https://www.youtube.com/watch?v=Jfpg396Z4DU

 Light Touch is an interactive projector that instantly transforms any flat surface into a touch screen. It frees multimedia content from the confines of the small screen, allowing users to interact with that content just as they do on their hand held devices – using multi-touch technology.