I agree that we need more vision to expand our capabilities. But I would add that all of our senses are ripe for innovations in interaction. There are things w

I agree that we need more vision to expand our capabilities. But I would add that all of our senses are ripe for innovations in interaction. There are things we have yet to accomplish in terms of audio and sight, and even smell. Our fingers get in the way when we use a touch screen-- will there be a system powerful enough to track my eye position to the point where it can assist navigation?