Good finding, a new peace of jewelry
It is amazing how one can fill up pages with meaningless pseudo-technical crap and end up with a patented empty space.
If you want to learn something about this technology in the real world, you can take the time to read Westerman's PhD Dissertation: Hand Tracking, Finger Identification, and Chordic Manipulation on a Multi-Touch Surface
. It is written in such a way that even human can read it! When Apple comes with something like this, something will be on its way. In the mean time we will see many nonsense of this kind which the media need to keep alive. And we know how much Apple knows about this.