This project, which makes wifi visible, is worth checking out. I'm captivated with it for a number of reasons, the most prominent being that my CFC media lab classmate Dylan Reibling thought of this idea a few months ago. Don't worry, his idea wasn't stolen – this is one of those cases when a good idea spontaneously appears in the brains of a bunch of different people around the world at the same time. Here's more info on the project and its creator Einar Sneve Martinussen.
