I'm considering it for my university-it doesn't have a mesh net yet. Like someone said in here, autonomous, self sufficient quadrocopters that power mesh servers is also my dream. What stack and chips / devices are you going to use?
look at project byzantium - depends on a regular computer to use or a raspberry pi but the whole goal of the project is "plug and play" software that will allow you to at the push of a few buttons get an ad-hoc wifi mesh set up.
