Finger hover tracking on touchscreens

I was just forwarded this link, I think this is something that will be used in 3G or maybe 4G mobiles, its actually very simple, and could soon be something that everybody will be using. Check out the video, if you wanna know more you car read the article.

Link to the article>

http://www.slashgear.com/cyress-add-finger-hover-tracking-to-touchscreens-video-2182656/\

Link to the video>

http://link.brightcove.com/services/player/bcpid1875385286?bctid=79173949001