Boooooooo new slashdot format.
I just wrote that anonymous comment, not intending it to be anonymous. I wasn't logged in and it never gave me the choice between logging in or posting anonymously. It just posted it anonymously! Guess I have to log in beforehand now...
I disagree. I live in Japan, and some if not all major providers don't allow tethering in Japan either, and will charge (or fine) you a whole lot extra to do it, just like AT+T in the states.
It's actually worse here because you can't just pay for a "smartphone plan" and then use whichever unlocked smartphone you like. It's virtually impossible to bring your own smartphone from the US, for example, to Japan, and have them approve it for use on their network with a reasonably-priced unlimited data plan, unless it is the same as one of the models they sell/support. You may still get it to work, but if they detect that you weren't using the phone they approved you to use, they will charge you outrageous metered data/tethering fees. To them, I believe using anything other than the single approved device that goes with your unlimited data contract is considered tethering (whether it actually tethered through another device or not).
What sucks about USA service is that they pay per msg to *receive* text messages. I think Canada may do the same.