Blaise Aguera y Arcas demos augmented-reality maps

He's also the co-creator of Photosynth, software that assembles static photos into a synergy of zoomable, navigatable spaces. Photosynth itself is a vastly powerful piece of software capable of taking a wide variety of images, analyzing them for similarities, and grafting them together into an interactive three-dimensional space. This seamless patchwork of images can be viewed via multiple angles and magnifications, allowing us to look around corners or "fly" in for a (much) closer look. Simply put, it could utterly transform the way we experience digital images. When applied to mapping it opens up an entirely new world. (Gee, and just when you thought you were getting the hang of the old one.)

http://www.ted.com/talks/blaise_aguera.html