Let's just hope that this works with the official 3.0, but that it also won't mess up our current OS, say if they release a new update that activates tethering but it's already on, but I HIGHLY doubt it. The only real thing that I'm worried about is that AT&T finds out that people are using tethering on iPhones right now quickly and then charge us for it, the $30 that is. Then the worst case scenario, a website like cnet decides to post this up so EVERYONE can see and then AT&T will figure this out quicker. If we're lucky, they won't find out for about a week and then it'll take them a while to fix, I mean what are they going to do, ask Apple to release a new update (these come out months at a time)? I will find it really funny if there is no way for AT&T to stop this unless Apple releases an update, but then Apple decides to get revenge on AT&T and take a long time to release the update while everyone uses tethering for free on AT&T's servers, a service that should honestly come with the phone. I also hope that if MMS is figured out, AT&T won't bother to try and fix it and that their servers do get overloaded so they'll learn!