3dcgi.com:

When many people think of 3D displays they think of Princess Leia’s message in Star Wars. In a Flash demo at their site Provision Interactive claims this three dimensional projector has arrived. Here’s a quote from their web site.

"Provision displays project three dimensional digital video images out into space detached from any screen, rendering truly independent floating images featuring high definition and crisp visibility from distances up to 100 ft and up to 60° viewing angles."