I have a legit AT&T contract. I happily pwned my iPhone when Pwnage came out in the spring, enabling baseband update, neutering, unlocking and activating (phone was previously jailbroken but not unlocked). I unlocked because I travel abroad and I like to use pay as you go SIM card of the country I am in.
A couple of weeks after 2.0 came out I left the States again and spent most of the summer in Europe. While I am still running pwned 1.1.4, I have already prepared my custom firmware with the new Pwnage Tool but I haven't restored it yet.
Here's my question: what happens if I restore my custom 2.0.2 FW with neutering, unlocking, and activating while I am in Europe? I guess there are two scenarios:
1. I restore custom FW with european SIM in iPhone
2. I restore with AT&T SIM while in Europe
Is this OK or am I going to have problems when I go back to the States and want to use my AT&T SIM card?
My intuition is that it should not matter, that the activation has to do with the device, not the SIM, but I am not sure, and I like to know what I am doing.
To the wizards out there, can you explain to me whether or not I can do this and why?