I would think backing up all my files on iTunes is a safe bet.
When I lost everything on my ipad after restoring, whatever I have backed up in iTunes was not able to sync it back into my ipad even if I chose to install it back using existing back up files on iTunes! nothing!!
what is all this synching for if restoring doesn't even work to bring all information back into my ipad??
Before, I was able to see all the files in an app on iTunes and now not at all!!
If I could use strong langauge here, it would be endless!!