I have a Samsung N400 through SprintPCS. I upgraded to this one from a Samsung N200, which I upgraded to from a Sprint Touchpoint 2200. I've had a few problems with my N400, but then again, i've dropped it onto concrete about 5 or 6 times and it still works as advertised (Minus a few lock ups rarely here and there). Sprint is the best provider offered in my area at the moment, and I've tried most of the others so I know
