This could be really cool! Rife with privacy concerns, and wildly open to abuse (walk into anywhere and generate a map of it instantly?), it sounds like something out of a 007 movie or video game. Couple it with photographic images, and you could generate instant walkthroughs. Imagine walking around a movie set and instantly having the raw material for a video game environment. Or importing your street into something like Call of Duty – could be fun. You could import your home into an Ikea app, and play with different remodel ideas, and be sure everything would fit! Emergency services could get a layout of your surroundings while you talk to the operator – the possibilities are pretty amazing.