Please share your tips: 1. Please make sure you have plenty of space before doing a full backup AND RESTORE. I actually ran out of harddisk space DURING RESTORE as I did not know itunes actually deflate files very aggresively from the backup. 2. After JB, it's a good idea to reset your wifi settings and resetup. I had connectivity problems but they went away after I reset them 3. Before upgrading and wiping all your date, take note of your cydia sources and the tweaks you have installed. Chances are you have to set them up again. Openbackup DID NOT WORK. 4. Use your PC to download .ipas then use iFunbox to install them. It is much easier to use a PC to download apps than working with a small screen. (Remember to install latest AppSync for ios8 and reboot first) Hope it helps!