I just switched from Cingular to AT&T. I know they merged and all, but AT&T gave me a much better deal (military discounts). I got 39% off my phone, 15% more minutes for 15% less money, 10% off accessories, and I am limited to a ONE year contract. I thought the deal was too good to pass up, plus most of the people I call frequently are on AT&T, so those calls are free. If coverage sucks by the time I end up on base then I will just switch. The GSM networks are good if you're in the right areas, and they will only be expanding. Plus, now you can keep your number, so that made my switch that much easier.