Here is an interesting offer by a company wanting to create "social routers." The idea is that people buy inexpensive wireless routers with the intention of sharing their connection with other people doing the same thing. A school district is a natural form of community. If a significant percentage of a community were to belong to a service such as FON, the result could be a community-wide wireless network. That could open the door to a wide range of possible projects.
Wi-Fi Crusader in $5 Router Giveaway: "FON, a Spanish start-up on an ambitious crusade to turn home Wi-Fi connections into wireless 'hotspots' for nearby users, is set to unveil a plan to hand out 1 million wireless routers for just five dollars apiece."