I just found this thread to figure that out. Wondered if I missed something. Apple's site still says October release. I would much rather they give a late date and shoot for early in the month release. Even though it's ready in October, tell us it's gonna be released November and then release it sometime the first week of November. I think they would avoid most of the complaints that way.
I am excited for this new release. I've noticed my iTunes to be slowing down quite a bit lately and I'm not sure what the root cause of it is. After leaving iTunes dormant for a few hours, I come back to play a song, click on the song or click on the playlist, etc.....pause......beachball for about 15-20 seconds, then it registers the click. My first guess would be that I store all of my iTunes library on my OWC Mercury Elite Pro Qx2 and it's accessed via Firewire 800. But it's only been doing this for the past month or two. It wasn't like this when I first started using it back in April of this year. My library hasn't grown considerably other than maybe by 20-30GB.