To say that ATT and Cingulars GSM is not as good as T-Mobiles is not accurate, GSM is the same no matter which company you go with. The Coverage is whats important. Cingulars coverage almost doubles T-Mobiles. This is because of 850. Cingular shows massive expansion in the west and in michigan. i believe most of that is going to be 850. If you look at T-mobiles map it shows only a little areas of expansion. I live in michigan and to have coverage in the thumb is more important than having no service, but the satisfaction knowing that my phone will work in a country that ill never go to. I think 90 percent of cell users usally stay in the US and Canada so coverage in our own country is more important that in europe. And besides ATT and Cingular both sell tri-band phones that have 850, 1900 and 1800, a world band.
T-Mobiles 1900 Coverage:http://www.t-mobile.com/coverage/Default.asp »
Cingulars 1900 & 850 coverage:http://onlinestore.cingular.com/webapp/wcs/stores/se ... »