This NBC article talks about google's glasses being able to project a keyboard onto one's wrist. My hope is that Microvision's picop is currently the only one that is suitable for current projection/read on a very uneven surface like a wrist.
"Laser projector" is all over the Google patent application #20130016070. For example -
"0031] In an example, the laser projector may be mounted on an arm of a pair of eyeglasses and the camera may be mounted on an opposite arm of the eyeglasses. The processor may further be mounted on the eyeglasses and coupled to the laser projector and/or camera. A laser pattern for a virtual input device can be projected onto a hand of the user, and the user may use an opposite hand to select items of the virtual input device. For example, the laser pattern may be projected onto a "display hand", and the camera may be able to detect when the user uses the opposite hand and the laser hits an "action finger" of the opposite hand that is making a selection."
Tokman said that more than 20 potential customers had been evaluating the company’s pico-projector technology in the third quarter. GOOGLE has provided the catalyst and excitement for other to make contracts. The first step has been taken. The industry will catch fire as the other big players must step up to the plate.