Touchscreen digital camera

I got carried away with some of the nicest touchscreen user interfaces.. One of the nicest performances I saw over the net, couple guys had different ways of giving orders to the screens with different touch combinations, a kind of a Human-Machine language..

Since touch is surely soon a part of mobile gadgets (Nokia aeon, iphone) , I started to ideate a finger operated touch screen user interface for digital cameras. In my opinion, a truly well sighted development, who hits first?