at&t gsm is getting better, and is probably unavoidable since cingular's purchase of at&t wireless went through, they have been integrating their networks. i've already noticed some improvements, assuming i am not hallucinating. cingular is all gsm, so it's likely that their TDMA network will get orphaned. it's also sort of phone dependent. but yes, gsm is still somewhat spotty. when it works it is great though.