Glasses-free 3D as per the Nintendo DS works well enough, I guess - small viewing angle and all that. When it comes to augmented reality, though, it's not reall

Glasses-free 3D as per the Nintendo DS works well enough, I guess - small viewing angle and all that. When it comes to augmented reality, though, it's not really what you want. A real innovation would be to bring glasses-only 3D to market - ditch the phone altogether. You could still project a phone-like interface onto the palm of your hand (or a piece of paper, or...), but I imagine eye-tracking interfaces would win over pretty quickly. Come to think of it, why haven't eye-tracking interfaces made it on the phone already? I suppose dragging might be hard, but it'd beat a touch interface hands-down (hmm) for simple pointing and clicking.