I have been searching the internet looking for an answer to some questions I have about the line of new phones from big red. Finally I called a rep (I know their reliablity can be sketchy). After she did some diggining in her computer she came back with this: If you buy a 4G phone and don't have 4G service the device will default to 3G. But, after transition to a 4G plan you are subject to the 4G data limitations even if you are one of the folks that don't get 4G coverage until 2014. I was very excited about the Bionic (still am) but now this definitley make you step back and think. If you get this phone your data is capped and more pricey whether you have the speed or not.