Windows 8 is actually available already, and no not just the consumer preview. I went to a school that had a program for its computer students that gave you access to a fairly decent amount of Microsoft products, for Free!.. I can still login to access all my previous downloads, and I can see all the products available to "eligible" members. Windows 8 Professional was added at the beginning of the month. My eligablity was up 5 months ago sadly haha they let you access it two years from when you graduate.
And I have a cousin that is a developer at Microsoft, he decided to update all PCs in his house with windows 8.. his wife is not to happy I guess.
But I still got plenty of software that came in handy and I can use it all for personal use.
But the official release to the public is supposed to be Oct 26th I believe