It is not At&t who determines the memory capacity, it is the manufacturer of the phone.
I'm looking for a phone with a very very large amount of expandable memory. On AT&T (which is my carrier) has two phones that attract me with their large expandable memory options. The first one it the Motorola Q Global (the gray one) and under memory it say 32GB micro SD (I think its micro but I'm can't remember at the moment) and teh HTC TyTn II which has the same amount of expandable memory. THe thing is....is this even true or is AT&T bluffing? Can anyone confirm that these two phones have that much memory to expand up too? Plus...where can you find these cards of this much storage anyway? Seems like that they're not for sale in the USA yet.