Julian Bleecker, one of the most insightful observers of cyberculture, is involved with a startup, Visavisgames, which will be previewed Tuesday from 11-noon at Guerilla Studio's Games Atelier booth at SIGGRAPH:

demo video

We're developing a new kind of game experience using outdoor viewable mobile devices that anticipate the near-future of pervasive electronic gaming. These devices range in size from about that of a tiny laptop, to the size of a small book. We then configure these portable mobile devices with a GPS sensor that measure your location in the real world, and orientation sensors that can tell precisely where you're looking. This combination makes for designs that represent a true innovation in game play.