I currently have an jailbroken iphone 3g 2.1 baseband 2.11.07. I want to upgrade to 2.2 and jailbreak it. (I dont need to unlock) I am planning to update my iphone 3g from 2.1 to 2.2 with iPhone1,2_2.2_5G77_Restore.ipsw and then quickpwning it to jailbreak it. I can only use quickpwn since I use windows. My questions is - 1. Does it matter if I use quickpwn (windows or mac) or pwnagetool (macs only)? 2. Does that procedure update the baseband and prevent future unlocks? 3. Does it really matter if baseband is updated now since the Dev Team came out the yellowsn0w? There was so much warnings about upgrading via itunes to 2.2 since it will updated the baseband.. but does that not matter now? Thanks everybody!