I suggest everyone of you that participated in this beta do a factory reset after the final version is installed. Going through many betas than a final install will leave a lot of junk behind that a simple system cache wipe will not fix. That junk may in many cases cause serious performance issues (stuttering laggy screen, application errors, long boot times, etc.) - that one would not otherwise experience. It's easily done, and should take less than 15 minutes if you have good wifi.
* I Recommend Samsung Backup as the means of backing up your data. As it also will save a snapshot of exactly how your screen was set before you wiped your device. Within 15 minutes it will be like your 20 year old car is new again.
I was thinking the same. only issue I have is backup doesn't save my Samsung music (or does it?) I noticed they took music off. I've been wanting to do a factory reset but I'm always afraid I'll lose some data. What about for gallery? what do you recommend?