No way in hell you can do the same things with that... that I can do with a mouse.
It's just not as precise... and the obvious latency is horrible.
The average person, even for non-precise handling of app controls is not going to be as hand\eye coordinated as this guy doing the demo.
Plenty of gimmickry mongers will check it out for 70 bucks tho..
My guess, is at least this early version of this type of tech. is nowhere near where it needs to be, for widespread use.
Off to the shelf with Zubatti's CueCat