I'm getting iPhone 3G on Monday from O2 Ireland on bill pay. Is it possible that this iPhone would not be possible to jailbreak? Like Apple installs anti jailbreak thing or something. Or is it pretty much sure the same iphone 3G that everyone has been getting for ages now and there should be no reason that it shouldn't be possible to jailbreak with pwnage tool 2.2 on a mac Leopard 10.5.5?