Wanted to revive this topic as I think it would be a really usable way to control the n8x0. Perhaps a new thread should be started because the way I am picturing it it would not function like a mouse.

Maybe it is just me, but I see this being useful to control the browser (for example, flick your finger/thumb vertically up or down across the camera to send a "page down" or "page up" command, or flick your finger/thumb horizontally left or right across the camera to switch between windows or tabs or workspaces even). I could see it controlling games very easily as well (example, draw a dot on your thumb and hold it in front of the camera, if needed put a cheap piece of clear plastic to hold your thumb on). It really has lots of potential if it can just pair keybinds with what the camera senses. If it can be done on s60, can't it be done on maemo? The things that can be done on a PC with openCV 1 2 , freetrack, camspace, or opengazer are impressive, but simple webcam tracking would be much easier I should hope. Make the thresholds less sensitive to save on processing power. If I am completely off base let me know, but seeing it working on a s60 phone makes me think it would be feasible.

Or maybe I have just had too much coffee today and am off in Pink Floyd land.