Funai was showing off the new Eco Scan projectors at CEATEC in Japan. The pico projector boasts multi touch recognition, making any surface that it is pointed at into a high tech screen.
In the demonstration, users were seen twisting pictures and drawing over the same images using the table in front of them. The Eco Scan projectors are small to boot, making them practical for home users. I think that I need to get my hands on one of these awesome toys.