Thoughts about Hyper-V

I've just had the opportunity of listening to a program manager talk about Hyper-V in Windows Server 2008.  I must admit that it looks really impressive, particularly the support for up to 4 cores and the snapshot facility.  I can see where I could use this for testing SQL Server builds/installations and troubleshooting performance issues.  All I need now is a quad core proc, 8gb RAM, 1 TB storage and a copy of Windows Server 2008 Enterprise Edition!