Hi All, Here is the situtation - I have an iMac which is where my iPhone (3g v2.2.1) is synced up with iTunes. The problem is my iMac is at v10.5.6 and I cannot get the jailbreak to work there. I'd rather not do the v10.5.5 switch thing if I can avoid it. However, I also own a G4 Powerbook that is at v10.4.11. Can I jailbreak it there and then sync back with the iTunes on my iMac to get back the contacts, songs, etc? Thanks!