Fixed, so far!
www.unlockit.co.nz
create a new att profile from iphone, install, reboot. Mine is working.

I have not really had this issue outside of my home area, so Im wondering if its a tower issue. Remember they did this whole "not the closest tower, but the best quality one" mumbo jumbo with iOS4.0. I think that could be affecting lots of people.
APple needs to get on it.
www.unlockit.co.nz
create a new att profile from iphone, install, reboot. Mine is working.
I have not really had this issue outside of my home area, so Im wondering if its a tower issue. Remember they did this whole "not the closest tower, but the best quality one" mumbo jumbo with iOS4.0. I think that could be affecting lots of people.
APple needs to get on it.