Nobody has corrected this yet, so I will. In Canada, Rogers and Fido both use the same 3G frequencies as AT&T. Those two (actually only one company/network) are currently Canada's only GSM providers so unless Nokia releases an 850/1900MHz version then they are *ignoring* all of Canada. I'd buy an n900 if it weren't for the fact that I can't actually use it.

EDIT: Don't even mention tethering. That's what I'm doing with my n810 right now and honestly I'm not even bothering 90% of the time anymore, simply due to the time it takes to connect (via BT).