Interesting concept. A year or two ago I was pretty interested in the various dark/mesh-net projects that kept popping up, but there were a few problems. Namely the fact that they were somewhat difficult to set up, and the fact that they were somewhat like TOR in the sense that accessing the "regular" internet required someone to tunnel traffic through.

Packaging this up into an app pretty much solves any difficulty of setup, making it accessible nearly to anyone.

I have no idea about how secure/sound current implementations are, but this looks like a cool first step.

Combined with something like TOR to bridge local communities, it certainly has the potential to become a truly useful technology.