Ok, I tried unsuccessfully to upgrade to 2.0.1 and then to pwn. (I am a t-mobile user with a previously pwned phone) I kept getting an error 6 message. I restored with factory firmware 2.0.1 once more, recreated the custom firmware and was ready to try and get into DFU mode, but each time I try, the phone doesn't wake up into DFU mode and iTunes displays "the sim card inserted in this iphone does not appear to be supported"...what am I doing wrong here?