I just got my factory unlocked iPhone 4 and it's on 4.0.2. The tethering options is available, but I don't know if I updating to 4.1 will take it away... Guess it's very unlikely but I wanna make sure. Does anybody know? Thanks.
UPDATE
On 4.1 and tethering is still there and working.
Last edited by alpawa; 09-13-2010 at 05:30 PM.
Reason: resolved
I've also got a factory unlocked (Australia rocks) iP4 that I've updated to iOS4.1 and the tethering option is still there.
Am able to turn it on and it gives the options of USB or bt. But can't test this as I'm at my gf's place - no toys.
Hope this helps