Looking to build an iPhone app (phone/server) that will monitor the location of fire department members who have iPhones. Phase 1: Every 15 minutes the system will check to confirm that there is sufficient manpower within a ten mile radius of the fire house. If there are not enough members, an email would be sent to a distribution list notifying them of the issue. Variables should be configurable e.g. radius, manpower requirements (# officers, # firefighters). Ideally the server-side software would be easy to host e.g. low traffic frequency and bandwidth size.