Microsoft has posted a public preview (Release Candidate 1) of Small Business Server 2008.
Registration may be required to download the trial and caution should be exercised here.
1) The is an early preview release and should not be installed on anything but a 'beta box'.
2) Only the 'Premium' version supports x86. The Standard version ONLY supports 64 bit processors.
Seems like it should the reverse ?!
We're giving it a test ride now....
So for you beta types .. that's the latest edition of 'free software to mess with over the weekend'.