This is the second house in the neighborhood that's been offered to founders rent-free. The first [0] is home to some people working on an API for 3D printing [1], an app for online jam sessions, and a couple of other projects.
Down the street is another house shared by several more startups working on things like real-time search [2], retinal authentication [3], etc. There are other similar endeavors scattered nearby, plus some web-dev shops, etc.