Need Comms Now is a system designed to track cell phone and wifi signal strengths in areas with damaged infrastructure during disaster scenarios. Data will be stored locally, while periodically synchronizing with a server when possible so that others may benefit from the gathered information. More information can be found on RHoK.
Android App: https://code.google.com/p/cell-signal-tracker/
AppEngine Server: https://code.google.com/p/need-comms-now-gae/
The wikis for both projects have developer guides specific to each platform, and the issues tabs have a list of features in the backlog.
People are welcome to contact Paul [firstname.lastname@example.org] or the general project mailing list [email@example.com] for information.