I went into my local ATT store to pick up my new 3G phone. I put it on my wife's account so I could get it and pwnage it for my work phone(work will not pay for it). I did not have her phone with me at activation. They told me no prob..they would keep her Sim active in her previous phone (Iphone 4GB). For ***** and giggles, I put my sim in the new phone to see what would happen. IT WORKS WITHOUT PWNAGE!!!!. They activated it at the store without an active sim!. I am not sure it will work with T-Mobile, but for my usage, it is perfect! No visual VM, but everything else works. Any ideas?