when u unlock ur phone, u can enjoy alot of great features. i think that is what it is. sorry i dont have alot of info on it though.
When most carriers sell you a cell phone, it is programmed to only work on that one carrier, hence it is locked into the one service, unlocking means that you can use other carrier's simm cards. http://www.themotoguide.com/index.php?PID=1&PGID=6HvU0GFBpi a good start for NooB questions.
