FireChat, a Mobile Chat App

Before they come to take me away ha ha ho ho hee hee

"As pro-democracy protesters flood Hong Kong streets, one app in particular is getting plenty of attention: FireChat, a mobile chat app that can work even without an Internet connection. … Since it relies on mesh networking for its 'Nearby' chat mode… works if you're in an area where the wireless networks are congested."

I've thought for some time that cell-to-cell networking may be the workaround when SHTF digitally, but hadn't seen anything of the sort until now. I don't know if "mesh networking" means the same thing, but sounds like a good development.