Theres an app for that

Cruise missile guidance... Think about it. The new iPhone is perfect as a guidance system for a cruise missile - GPS, attitude gyros for positioning, heck, you could even pipe the camera images back to Centcom so they could get the kill video as it drove right through the door. Don't try to tell me that the GPS signal comes through a cell tower and that there are no cell towers on the ocean... uh-uh. Ever notice that your location is available even when you don't have a connection? For more info see http://arstechnica.com/apple/news/2008/10/using-the-iphones-gps-without-a-network-connection.ars


What cost the government millions to develop in the 1960s / 70s can now be yours for $200 and a 2 year contract.