Holographic displays step closer
BBC News - Savas Tay and colleagues at the University of Arizona, Tucson, have discovered a material in which holograms can be created in minutes. Also, it can be erased and rewritten over and over. Article includes a link to a video (WMV or Real).
Working with hi-tech firm Nitto Denko the researchers have so far only made a screen measuring 10cm by 10cm.
However, in Nature they wrote: "There is no technological limit to the achievable display size, because large thin-film devices can be fabricated and even tiled together".