Revised opinion: iBye did not live up to the high expectations. Use Pkg Backup instead! I just reviewed a nice little app: "iBye". Your i-device needs to be jailbroken in order to install this useful little helper.What does it do? It backs up all your data for your apps (data for App Store apps and for jailbroken apps). The jailbroken apps itself can also be backed up. The target location for such a backup can be a FTP server.So now once you have to restore your device (may you wanted to try out the latest beta jailbreak software?) and then when you desire to have your old working environment back then you simply need to install ibye again and restore from a backup and volia there you go.Works well.