How can I jailbreak my iPod touch 2G by using Jailbreakme or other tools that do not need a factory reset? I am using 4.2.1 Firmware. It seems that before the launch of Jailbreakme 3.0 or 2.0 supported my device, but I used my iPod touch today and it showed that Jailbreakme do not support my device. So anybody can help? How can I Jailbreak my iPod touch 2G? I would really appreciate your useful information regarding this. Thanks.