What is the best method or tool to back up all things related to Cydia including Apps/Packages, tweaks, themes, etc? Also will the cydia backup/restore cause conflict with itunes backup/restore? Another thing is that I read that some backup tools will only backup/restore to the same version of iOS, so if you take a backup from version 4.1 then you can restore that backup on version 5.1, is this true for all backup methods? And will the Cydia backup be stored on some server somewhere or my local PC? Ideally, I would want to be in a position where I can restore to, lets say, 5.1 then jailbreak and finally restore cydia backup.