Hot off the press….

Overview of Hyper-V: – Updated Feb. 10, 2010

What’s New in Hyper-V: -  It does not show an updated date, but it does now have R2 info in it.

Getting to Know Hyper-V:  -  Was already updated for R2 on December 15, 2009.

Hyper-V FAQ


Additional Overviews:

Overview that was included in Help in Hyper-V 2008 R2

Overview section of deployment content, applies to 2008 & 2008 R2.