Holograms are one of the final frontiers of technology that we were promised by science fiction movies and books that has yet to really arrive in a big way. There have been some forays into it over the years, with some pretty solid results, but none of them has shown off the way that you will interact with these pretty images.
Russian company Displair has released this slick demonstration video demonstrating holograms that are not only three dimensional, but also manipulable. The system consists of images projected onto cold fog and a Kinect-like sensor that detects your hand and body movements.
As much as I would love to take one of these systems home, some brief searching puts the system at somewhere between $3,000 and $35,000 depending on the application. A bit rich for my blood.