I went to a TechNet last week and they introduced Server 2008.

Ironically, the guy almost crashed it haha! But he recoverd it just barely though. It has over 700 new objects and a bunch of new utilities. I cant remember if it will ship with Hyper-V or not at first, but it will eventually ship with 2K8.

I got an eval cop, haven't installed it yet, but im going to this week end. SO be prepared for it to hit the shelves eventually.