A couple of weeks ago, I was asked to develop a device that can understand my hand gestures to accomplish certain task like taking photo, browsing and other task that normally you need a computer, PDA or handphone to accomplish that. This idea isn't new as I recalled, Microsoft did come out with their Surface device and Nintendo with their hand-wobling Wii several years back. Then I start to see numerous of similar product (prototype mostly) start to emerge.
