OK. I have held onto 3.0 on my 3GS. And I am an AT&T customer. And I love it. I still can tether with Benm.at, and jailbreak is great stuff.

I have a buddy who upgraded to 3.1 and lost his tether. But he jb'd and got MyWi 3.2.4, and he can now tether, AND the tether option that was not on the Settings/General/Network screen before is now there.

So assuming tether is back with MyWi 3.2.4, and I am not caring about unlocking, can anyone think of a reason that I should not upgrade to 3.1?

There are apps now that are AReality, but only on 3.1.