Clive Watson has been testing the new System Center Virtual Machine Manager Beta 1 and he has posted some articles about it on his Weblog. All of these parts together end up being a very nice user guide for this version of SCVMM:

Part 1: Introduction
Part 2: Host Groups and Self-Service policies
Part 3: Views for Hosts and Virtual Machines
Part 4: Adding a new Host
Part 5: Filtering views
Part 6: Host’s Managed Properties
Part 7: PowerShell
Part 8: PowerShell (cont’d)
Part 9: How to create a Virtual Machine
Extra: Can you help the help?
Part 10: Remote control
Extra: Summary and Diagram
Part 11: Template and Profiles
Extra: SCVMM Self-Service FAQ update

Since this is a Beta 1 version there is not a lot of documentation for you to start playing with it. Clive Watson has done a very good job on this, it’s really helpful and it can lead to a better testing of the product.