Pico Projector Powered Immersive Gaming Project
Even though this virtual reality gaming experiment is truly at the embryonic stage of development, it has captured the attention of gaming enthusiasts and pico projector watchers alike
Created by engineering students at the University of Texas at Austin seeking a gaming experience more immersive and far less expensive than other attempts we've seen which use multiple monitors, this setup tracks the user's head through a webcam and face tracking software. The pico projector moves in unison with the players head in order to deliver the perfect view angle at all times.
Source: Pico Projector-Info