You're reading this line in particular on the T-Mo site, right? That would be nice. Ideal, really. But when I read the line from Intex: which is a little ambiguous, I'm thinking that by "GSM" they mean just the EDGE and GPRS coverage in the 1900 band, since they list the FDD and Dual-band bands it supports separately in the FDD part. Perhaps this just reflects my pessimism . . . I'm a hopeful pessimist, though. And T-Mo is usually the best bet for imported devices like the N900. (Stupid me for not specifying I wanted a T-Mo SIM when I signed up for a prepaid MVNO plan, so I'd have had best possible coverage for both my N9 and N900)