Well beta 1 has been released but there are already some good posts on it. I did say in my earlier post that virtualistion management will be a big thing and SC VMM is Microsoft’s answer.
Clive Watson has been busy with three posts on VMM with some good screen shots showing the features.
The Virtual PC Guys blog has links to the WinHEC keynotes that has demos.
You can apply for beta 1 at http://connect.microsoft.com. Read the post at http://blogs.msdn.com/virtual_pc_guy/archive/2006/08/07/691345.aspx first.
Read Tony Soper (Enterprsie Management Product Group at Microsoft) for info on VMM.
And especially the documentation at http://blogs.technet.com/tonyso/archive/2006/08/07/445457.aspx