This holiday season a lot of us will be investing in new mobile devices. What we used to call cell phones not too long ago. Since you're going to be paying all that money for that handy device, you might want to do a little research on what others are saying about the providers that power them up.

AT&T is the lowest-scoring cell-phone carrier in the U.S., according to a satisfaction survey of 58,000 readers. Of all the carriers rated, AT&T was the only one to drop significantly in overall satisfaction.