I upgraded my iPhone 5 to iOS 7 last night and restored from a backup. I've been restoring from the same backup since my iPhone 3GS. I want to start fresh on iOS 7 and get rid of all of the legacy files from the previous iOS versions as well as leftover data from all of my past jailbreaks. HOWEVER, I do not want to lose app data (i.e. game progress, settings, etc) nor do I want to lose text messages. Is it possible to modify the backup of my phone so I can delete the stuff I don't want restored to the new copy of iOS 7?