I have 2 iPhones, mine and the wifes. Both 2G and both on 3.0 and unlocked and j/b by using RedSn0w For a few months now I have not been able to get my iPhone to show in iTunes or on the Mac at all. I have tried numerous different ideas and tips but nothing seems to work. So far if I put the iPhone into DFU mode nd plug the USB in it shows on iTunes as a phone in recovery mode. But it will not let me restore. I have deleted applemobiledevice, itunes etc and re-installed them which did work once, but only once and has gone again. I have tried Pwnagetool and that won't recognise it either. The other phone works fine though all the time.