We have Cingular. DH went by one of the stores in our town today and was told he'd "have" to get a plan. This is not our usual Cingular store so tomorrow he's going to our usual store to find out from them. We looked at the Cingular plans and phones through Amazon.com (the attraction was the free PDA phones), but you had to get a data plan - which we don't want right now.