OK, I got an iPod Touch for Xmas. In reading these posts on here, it seems many iPod Touch owners have chosen to Jailbreak. As of yet, I have not done so. What are the real pros and cons to jailbreaking? I know one con to JB is that warranty on the iPod Touch will be void. What are some other cons to JB? When SDK comes out in February and 3rd-Party developers start putting out apps for the iPhone and iPod Touch, will jailbreaking be needed anymore?