Apple has received a patent for 5D technology. This technology would make computers work without the need of a mouse, keyboard, or motion controller. Apple bought the patent from Canadian inventory Timothy Pryor.
The patent covers “electro-optical determination of temporary surface distortion caused by the physical input signal” according to Patently Apple. 5D is the force-vector direction and magnitude of force that is added to touch.
The technology does not need a special touchscreen to work. The patent includes tactile feedback, 3D sensing capability, and the ability to detect complex figures. The patent focuses on TV-related applications and includes optional stereoscopic 3D glasses. You can read more about patent #8,228,305 B2 here.