A pair of new Apple patent applications have surfaced this month at the USPTO that clearly illustrate Apple's research efforts are mounting in the area of motion sensing and motion tracking. The first patent is all about controlling keyboard and gesture command sensitivities to accommodate public commuters while they work. The second is more dramatic and points to a new hybrid motion tracking desktop keyboard. The thing is that the latter is also being considered for use in Apple's MacBook line up. This would eliminate the use of trackpad and need for a touch display. There's no doubt that Apple is pushing hard to find a way to implement gestures on Apple's desktop and notebook products to support OS X Lion and beyond. At this point however, it's a little too early in the game to call the winner. Update 3:20 PM PST: New details have emerged about the motion tracking keyboard and are detailed herein.