I tried to use redsn0w_mac0.9.9b6 to jailbreak my iPhone 4 (verizon) i can get as far as when it says that it is rebooting and then it just freezes and nothing happens.... Any help? And, any ideas on when the untethered jailbreak will be released and if i should hold out for that? please help me! Again, i am using iOS 5 GM