It turns out that the 3.1 patch for the iphone removes tethering for any carrier that isn’t a partner of Apple. This means that if you own an officially unlocked iphone and run it on another network, you can’t use the iphone as a modem for your laptop any more.

Well done, Jobs – keep fucking your customers up the arse! They’re your fanboys, they LOVE it!

Apple – Support – Discussions – no tethering on officially unlocked ….