Google project glass input via virtual laser keyboard
Google project glass wiki: Google GlassGoogle announced project glass six months ago, but it is still not very sure that what features this equipment have and which features can be implemented. For the input they have introduced laser keyboard. To write a long e-mail or SMS you can use this virtual laser keyboard. Google has released a new patent and this might solve the input issue.
Google new patent application 20130016070 Google the frame of the glasses can project a keyboard to the hands of the user, and then you can use the other hand to issue commands to the Google glasses. Google glass camera has ability to identify the gestures, so you can also gesture input.
Of course, the company is not necessarily will patented technology used in the product, but the patent information really allows us to get some clues. You can imagine how to use the laser projection keyboard.