My personal opinion: no. Ideas like this (voice control as well) have been floating around for years, but I think they mainly appeal to the 'sci-fi movie' vers

My personal opinion: no. Ideas like this (voice control as well) have been floating around for years, but I think they mainly appeal to the 'sci-fi movie' version of the future, and are not things that will achieve mass traction. Flailing around with gestures would get tiring very fast - you could keep it up for 10 minutes, but try it for a few hours and see how you feel. Maybe you wouldn't need to make such big gestures, waving your arms around and so - maybe just small motions of your hands and fingers would work. OK, but you might as well have some kind of a rest for your hands. Congratulations, you've just invented the mouse. Really, outside of specialised applications (handicapped peoplem etc) I don't see this one taking off. Although I do think that there are better alternatives to the keyboard and mouse out there in the sample space of all possible input devices, my honest opinion is that his kind of thing isn't really that innovative. I think projects like Dasher give a better sense of future directions in this area.