Meet "augmented reality"

Here are two outstanding TED talks, presented by Blaise Aguera y Arcas, "an architect at Microsoft Live Labs, architect of Seadragon, and the co-creator of Photosynth, a monumental piece of software capable of assembling static photos into a synergy of zoomable, navigatable spaces."

The upper video is from 2007, and the lower one from 2010.  TED talk audiences are quite sophisticated, so when they all go "Ooooohhh....." during his presentations, you know the technology is quite impressive.