Input technologies which do not require physical contact are nothing new. The Israeli company Lumio (formally VKB) has been manufacturing and selling virtual laser keyboards for several years now. However Lumio's technology requires a surface on which to project the virtual keypad. The new technology developed by HoloTouch can supposedly project the keyboard into thin air relaying on one form or another of holographic technology. 

Although holographic-like displays have been quietly making their way into the market, true holographic technology is still in its infancy. In this respect, HoloTouch technology, if it will indeed prove itself, might be a industry's first, leading the way to more advanced applications and maybe, one day, to the dream of an holographic projector depicted in the famous Star-Wars scene showing princess Leia hologram.  

Currently HoloTouch is selling on its site BeamOne shown in the picture above) which is an evaluation unit for its holographic technology. The cost - $1995 – apparently most of us will have to do with our regular keyboards for a little bit longer.