I bought a Leap Motion gadget. See: https://www.leapmotion.com/
It is interesting but it does not serve my purposes. It cannot be used as a mouse with two screens. If anyone would like to try it email me your address and I will mail it to you. It works with a Mac or with PC Win 7 or 8. The setup and the attitude of the developers is kind of obnoxious. - Jed
