Researchers in Arizona have crafted a rewritable, autostereoscopic, 3 dimensional display. In other words you don’t need any special glasses to see the 3-D image, and unlike other previous Hologram tech you can write over the original image. Currently the tech is limited to a 10 by 10 centimeter palette and a still image. Nasser Peyghambarian, the lead scientist dude behind this tech, hopes to increase that to 30 by 30 centimeters and improve the write times to 30-60 times a minutes (currently write times are 2 minutes per image) such that moving images are achievable. Grandiose as it may sound, we might see a commercial holographic display in 3 – 5 years. The applications could be endless and range from movies to surgical procedures.

More info here.