Hello! I'd like to upgrade my ipad from 4.x to the latest 5.1.1 (I guess thats the best one right?) However, I wouldnt like to lose all my cydia stuff I downloaded over the years, nor my own configs, or apps or anything that itunes doesnt save as default. Is there a app or tweak (even from cydia) that would allow me to copy my actual ipad and later transfer it back when the new version installed? Thx!