Turning regular ol' devices into motion-activated wonders is all the rage these days, and a company called eyeSight is determined to stand out from the pack. The brains behind eyeSight claim to have developed a purely software-based solution for equipping PCs, TVs and mobile devices with 3D gesture controls using existing standard cameras. It sounds like a pretty sweet deal, but it all comes down to whether or not eyeSight can deliver on its potential. If it can, then it could be a promising sign