From 3D to AR (Augmented Reality) to mist projection, telepresence, and even this holographic display: (*) The holy grail of dimensionalized viewing has always been to create a digital display, that includes both interactivity for the end user, and ultimately display free.
The days of communicating like old Ben Kenobi are just around the corner. Many of us have dreamed of a day when we can call up a friend, or vidy a film, and feel truly immersed in the experience.