I'm not sure what you mean. Are you looking to backup everything including your jailbreak software and the jailbreak itself so you can restore it exactly as it is now? If that's the case, no.
If you want to backup your jailbreak applications so if you ever have to restore and then redo the jailbreak, then yes, there are many solutions, aptbackup is one example.
05-06-2010 01:36 PM