By Chris Morrison, Writer, VentureBeat While weâve written several times recently about the progress of next-generation, camera-based game control technologies, including the hefty funding received by Prime Sense and an earlier update on several competing companies, thereâs one detail weâve edged around: When youâll get to use them yourself. Thatâs because most of the companies developing gesture recognition technology arenât sure themselves. The firms developing the 3D cameras that make moti