Appreciate the info. Hope they will make 9.1 available on the release date.
9.1 PB is currently available. 9.0 is what's going to be available publicly next week. I have no idea how long it will take Apple to officially release 9.1, but unless something changes dramatically, I can tell you that I will probably never install 9.0. The 9.0 GM doesn't seem to be much (if any) better than the final 9.0 beta, and the 9.1 PB is way ahead of the 9.0 PB on my Air 2.