Cellphedia, a thesis project at the Interactive Telecommunications Program at NYU, is a user-generated encyclopedia composed of text message Q&A from cell phones – a kind of mobile, hyper-abbreviated Wikipedia. But unlike Wikipedia, Cellphedia entries are not open to editing by the community, at least not yet. Inspired by Dodgeball, a popular friend-tracking service, Cellphedia suggests something more along the lines of a massive, multi-user trivia game than a serious knowledge resource. It’s the kind of street research that is becoming more common. Answers on impulse. The web overlayed on the physical world.