Researchers at the University of Bristol in the UK have developed a unique interactive tabletop surface called the MisTable. It combines a conventional interactive surface with personal screens built using fog and a camera system to monitor movements.
The projections are both see-through and reach-through for a totally immersive experience that can be manipulated by the user. It kind of looks like a hologram at first glance but of course, it isn't. More information on the proof-of-concept can be found on the project's website.