Just a quick note because someone asked me if the Zune software works under Server 2008. I tried it out as an experiment. I don't own a Zune but the software seems to install and run just fine under Server 2008 64-bit.
I am assuming the 32-bit Zune software will run under the 32-bit edition of Server 2008 also.
If and when I get a Zune, I know I can at least use it under Server 2008.