Via Maker Blog, I liked this backpack mobile mesh wifi set up.

After Hurricane Katrina hit, BellSouth announced that it would take 3 months to restore phone lines. Volunteers using WiFi gear were able to connect churches and community centers within the first weeks and within three days of setting up an asterisk call server, routed 10,000 phone calls.

It's amazing what creative things happen when necessitie demands it. I've got all the equipment including the Pyramid SW lying around the apartment with the exception of the 12 v battery.

I think I may have found a new guerilla marketing technique for TWifi.