But seriously, I am unclear on pretty much every aspect of this. Even the screenshots give very little info. I don't know if I'm going to need to sign up for an account, or whether I'd be receiving "infections" from Portland and Boise or just up the block here in Seattle. And since I'm guessing 90% of these items are going to originate on the wider net to begin with, or be posted there simultaneously, the benefit to me seems dubious at best.
A more limited version that only sends stuff over local wifi or using local wifi as a beacon to make an ad hoc connection between "carriers" would be cool, though. More hyperlocal, you can be sure if the thing has only taken two or three steps, it was someone nearby who made it. Maybe that's how it works; there's no way to know for sure and I don't really plan to find out!