[jurjenh]

I'm excited and impressed by it mainly because I did think of it and started implementing it, thinking to develop it as a desktop interface, or possibly a cad program interface. Lots of linear algebra involved...

However, I stopped mainly because at the time (about 3-4 years ago) my webcam and opencv introduced a delay that was unacceptable and caused visual jarring in a small application (I think I was using a window of 320x240 or so).

I've also seen a demo done in flash by MrDoob of Three.js fame (IIRC), so it's been done by several people. I haven't really seen a useful implementation yet, so this is getting more interesting with these smaller, higher spec integrated devices...