I text my boss a couple times a day, he is with Verison, I haven't had any problems recently. Its probably just a Sprint thing. I have had weird things happen like slow delivery and things not delivered at all, this has happened with other carriers as well as other Sprint users. Just speculating here but Sprint is still trying to get the REV-A network going and this could be causing some problems. Couple of weeks ago for a hole day every time I got a text from someone I got a duplicate.