I'm not sure what's going on but sometimes the GPS on my iPhone 4 will just stay on and once it turns on it will stay on until I go to Settings>Location Services and turn off the whole thing. Even stranger is, when I try to look for a blue arrow for active GPS usage, there is none.![Frown :( :(](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)