About that map, a feature I would like is to fade spots which were scanned long time ago because WiFi access points might not last as long as cell towers. This way, as a contributor, I know in which areas to scan and, as a regular user, I know that the data for a specific area might be too old.
That's a good idea. The Stumbler app shows the coverage map (as blue clouds) on your mobile device, so you can see which individual streets are yet to be stumbled. Right now, our database is small and young enough that rescanning old data is not a high priority.
