Originally Posted by JSanders
Sorta correct. AT&T and most of the Canadian and European carriers share the same 3G bands, TmobileUSA does not.
If you have WiFi in most of the places you use the device (home and office) you may rarely miss the 3G. But if you travel a lot or drive about town a lot, you will definately miss 3G.
Atnt, Rogers group (chatr, fido), Bell/Telus group (solo, virgin, koodo) uses 850 and 1900
Europe and most places uses 900/1800/2100
Tmobile, Wind, Videotron uses 1700
That all for 3g, 2g edge take the same most place.
As for the cdma carrier 'world phone' they uses the carrier cdma bands + a 2nd radio for edge connection everywhere else