Ubuntu 12.10 has been released and you can download it here. Most of the changes might not be much of interest to those who don't use Unity, I use Cinnamon 2D desktop. I also like the new Remote Desktop function built into the login. Also perhaps the online accounts settings is quite interesting, though I still prefer Pidgin over Empathy. OMG!Ubuntu have done a nice little roundup of what's new in this video and their "10 Things To Do After Installing Ubuntu" article. I'd also recommend Linux Candy's 12 Things To Do After Installing Ubuntu 12.10, which is even more comprehensive!