Ah, it's a quad band. That would explain it.
My w550i is only a tri-band (900,1900,1800) so the extra (I would guess 850) band is a little useless over here. When I get back, though, I'm probably just sticking with Fido anyways. I've had too many issues with Rogers in the past to consider them for their 850 coverage.
Kalok: way too long to wait for a w600i when my current phone's ringer stopped working

Plus, I'm not in Canada anymore so ordering a phone from Rogers is out of the question!