Heliodisplay In Production

David writes "News of a 3D display that projects an interactive image into thin air, the Heliodisplay, is not exactly fresh. What is new however, is that this once far-fetched conceptual object is now real, working and being sold. For those of you who have forgotten, the Heliodisplay from company IO2Tech projects into the air (without a need for special screen) images fed to it from a variety of sources. In a way, it's a working version of R2D2s holographic projection system." A similar product, the Pocket Beamer was previously covered on Slashdot.