I jailbroke my ipod touch 2nd Gen. and it completely ruined it. Ex: Apps kept exiting by themselves, my ipod would restart on it's own, the whole thing just became laggy. I swore I would NEVER jailbreak another iDevice but I recently got the iPhone 4. So my question is: If I jailbroke my iPhone 4, would the same things happen to it as they did with my ipod touch 2nd Gen? I see people with jailbroken iPhone 4's all the time and they don't seem to have any problems. I think it could just be the ipod was an older generation so it may have not interacted well with the jailbreak, but I don't really know. If there's anything important you feel I should know about jailbreaking, let me know! Thanks!