mobile phone location services that can tell you when a "friend" is near
Sort of a reverse mobile dating location app then?
"Searching for hot UAVs in your area? Click here to flirt, click here to perform separation manoeuvre..."
Makes me wonder actually for some of the smaller, lower flying UAVs, could they not tap into WiFi/mobile phone networks as an additional/emergency communication method? Ie if you fly BLOS and lose link, could the UAV ring home to txt you that it is 'diverting' or RTBing or is orbiting? Send it a text back to confirm maybe?
Obviously wouldn't work for Global Hawk or a primary comms link, but with the mobile phone coverage being everywhere, worth thinking about?