Out of curiosity, I was checking out the iPhone service plans for Canadian carriers, and I noticed something interesting. On Canada's four iPhone carriers - Bell, Fido, Rogers, and Telus - tethering is included in the price of the package (for Rogers and Fido, this applies only to 1 GB + service plans). Granted, the average monthly 2 GB voice/data plan runs around $80 CAD. Even so, the fact that elsewhere tethering is included in the plan while here in the US, AT&T is charging an extra $20 for the feature is just frustrating. I guess it all comes down to competition, or lack thereof.