...you are SOL using it for 3G w/ T-Mo in the U.S. Typically they release UMTS 1700/2100 devices. ATT typically offers either 850/1900 or 850/1900/2100 UMTS devices, FWIW.
I have tmoblie and wish to buy the omnia hd (i8910).I worried that it might not run correctly over here.Does anyone know what the tmoblie bands are? I know the phone has a quad band 850/900/1800/1900 I also know it has 3g but on the Europe network or something. Thanks for the help.