The update that finally rolled out to Aus 2 nights ago seems to have fixed it for me. I tethered last night through my Samsung Galaxy S2 that is stock standard. I haven't flashed or ROM'd either my GS2 or my Prime.
Wanna know why people leave XDA? Because when they post things that definitely DO work for them and others, people immediately jump down their throat and try to make them feel like idiots. I have no idea why 2.0.7 works for me and several friends that own both primes and tbolts but it does. Period.
Sent from my ADR6400L using XDA App