hey guy, for the most part i use google maps, its works great for me (while im around my city). but i like to travel alot, and alot of times i find myself on 1-2 bars on Edge, and my google maps takes over a minute to update my location, its really bad for getting anywhere. i dont understand how real GPS's can get a signal anywhere, but my phones GPS requires radio tower signal to work. are there any GPS programs that can work off the GPS alone? so that if im in a dead area exploring, i can know where im going? i dont know much about GPS, but is there anything like this?