I've recently jailboken my 3.1.3. I know the new update is due out today. If i open Itunes when its available and lclick update, will i lose my apps or music? I have just this minute right clicked my ipod under itunes and selected backup. What i basically want to know is, When i update will i lose all my apps and music? I know my jailbroken apps will dissapear, but will the ones i've bought?