http://hardware.slashdot.org/article.pl?sid=06/10/01/1831256
'The Virtual Laser Keyboard (VKB) uses both infrared and laser technology to generate an invisible field and project a full-size virtual QWERTY keyboard on any surface... The I-Tech VKB reacts exactly like a real keyboard. Direction technology based on optical recognition enables the user to tap the images of the keys, complete with realistic tapping sounds(!), which feeds into the compatible PDA, Smartphone, laptop, or PC. Note: The VKB is both PC and Macintosh compatible!'"
http://www.virtual-laser-keyboard.com/
