For the security hole, I got it all patched up in cydia and I get the jailbreak. Was a little upset going from 3.1.3 to 4.0 and not being able to go back. I never realized how capable the iPhone 3GS was until cracking her open to see what she could do. Makes sense it is technically a computer, a computer apple wants to take over a computer I now own and not apple. Step off apple let people enjoy their computers.