I'm in the Redmond area this week and this morning I'll be attending a Microsoft virtualization launch event. Part of the announcements today include the upcoming release of Microsoft Hyper-V Server 2008, which shouldn't be confused with Windows Server 2008 Hyper-V, the feature of Windows Server 2008. Hyper-V 2008 is a standalone product and, until today, Microsoft has been saying that it would charge $28 for it. Now, they're announcing it will be free.

Via email:

Microsoft Hyper-V Server 2008 will be released within 30 days and be available at no cost via the Web.

I'll have more information about this product ASAP, as well as a few other tidbits from the show:

System Center Virtual Machine Manager 2008 will be released within 30 days. 

Microsoft Application Virtualization 4.5, released last week, will be included as part of Microsoft Desktop Optimization Pack 2008 R2, which is due for general availability in the coming weeks.

Microsoft [will] demonstrate for the first time a live migration feature of Windows Server 2008 R2.