The third generation technology is here, thanks to IO2 Technology. The Heliodisplay M3 projects a floating image onto an invisible particle cloud. This is a huge leap in the technology, it can project with 1024×768 resolution of display in mid-air (how cool is that) & it operates significantly quite. It cost around $18,400. The previous version of Heliodisplay had a resolution of 800×600.

For $1000 more you get to buy Heliodisplay M3 which is touch sensitive version projector, so it acts like input device like for a computer & you also get a cursor to control.