I have two 3GSs that I jailbroke. One using pwnage tool 4.2 and the other green pois0n. Cydia installed successfully. I wanted to unlock them so I could put them up on ebay for a bit more and so I used redsn0w 0.9.6rc8. I updated the baseban to the ipad baseban as suggested. After it had completed, I popped in a T-mobile (I was on at&t) sim card to see if the unlocked worked. All that came up was 1 bar (the tiny little one) and it didn't say anything about t-mobile. Did I miss something? Should the phones say t-mobile on them or how would I know if I did unlocked it?