I like alot of people try new programs and well trying new programs doesnt always have a great outcome for me or my phone
my idea for an app would be to update your custom ispw in pwnage sorta like timecapsule so that way if you downloaded or customized your phone after you restored it with the avaiable repos you wouldnt have you phone in its latest working (glitch free ) form.
well its already halfway implemented. In pwnage you can (in cydia only currently) add sources or download apps straight onto your custom ipsw. Just wait for an update to installer and it should be able to do this