Dear All
for all of you interessted in contact-free "minority report" - style of airtouch interaction i have been experienceing with several technologies in the past month and I thought some of you might find this very exciting and usefull.
The basic approach is to use infra-red light curtains and retreiving the intersected ir beams as input for scaling or positioning individual layers.
The setup we have demonstrated on a couple of shows and demos right now is making use of the Pandoras Box Automation SDK and a serial connection to the light curtain.
To see the result in action check out this video of the Demo at XL Video UK:
http://www.coolux.de/root/videos/casestudies/airtouch/airtouch_big.mov