fromsouth,
Point is that for us it is really hard or allmost impossible to return the phone back to USA to someone so that someone can return it. May be people here don't even have someone in USA to send it to.
Also as you said yourself - if I return my iPhone and get one from AT&T that don't have that SMS problem, and 2 months from now AT&T does the locking through a profile update, then I'm in the same bad situation as now. So based on what you said yourself, it's no point to try and return the iPhone, cause we in the end will get the same problems, right?
iPhones are not sold at the same price in UK, so seems like somebody here on the discussion didn't do his research. Unlocked iPhone is about 150 euros more expensive in Europe than in USA.
For me, and may be for many people on this forum dealing with the same problem, it is hard to send the iPhone to USA and also expensive. To send it from Europe to USA, assuring it won't brake on the road, I have to pay about 100$, if not more, so it's not a good option.
That's why everybody here hopes for a resolution from Apple or Sprint, or anyone else. I assure you, if we had an easy option to return the phone, we won't be asking here on the forums what's the problem.
And if the resolutions doesn't come in timely manner, unfortunatelly I won't have any other option but to search some hacking solution.