Sure, 3D adds a little more dimensionality to your couch-bound viewing experience, but it's far from the truly immersive virtual reality people have promising for decades. Surround Vision isn't quite VR either, but it's an interesting way of breaking the perception barrier, allowing a viewer to pan around a scene outside the perspective offered by one display. It's a project by Santiago Alfaro, graduate student at MIT's Media Lab, and relies on a tablet with a magnetic compass. In his demo he filmed video from three perspectives and is able to display the center perspective on the main TV while panning around to the other two with the tablet. It's an interesting idea to bring some aspect of interactivity to the viewing
