Another tidbit from that Bionic Contact Lense Article

" The amount of investment in miniaturized projector technologies bares testimony to the prospects for this market and we have seen numerous prototypes showcased recently by the likes of Microvision, 3M, Texas Instruments, Explay, Neochroma, Digislide, Light Blue Optics and from research labs such as the Fraunhofer Institute for Photonic Microsystems . Though the microprojection area promises the ability to project a large screen on any flat surface, we have yet to see commercially available products and the technology won’t suit everyone, partially because they’re still not quite small enough, and partially because of privacy issues -- projecting delicate company information onto an airport terminal wall, for example, might not be a good idea. "

This is the first step towards the eventual full-sized holographic touchscreen that will be able to project into open space (not against the wall), and will boast translucence for privacy and clarity reasons. See video below for a demo of TI's mini projector.