E3 2009 officially opened the floodgates in terms of motion control on the Xbox 360 and PlayStation 3. Though Nintendo had found major success already with its Wii console, Microsoft and Sony were clearly hungry to get in on the action.
During each of their respective press conferences, we learned that neither Microsoft nor Sony wanted to directly emulate the technology Nintendo was using, but between the two, Sony's demonstration clearly piggybacked on the Wii remote wand shape and MotionPlus.
As time went on, we learned that this motion control initiative would be called PlayStation Move, and unlike the Wii, the technology would use a camera along with a light-up wand controller. The ball on top of the Move controller is what the PlayStation Eye sees, which it then computes into input commands.