Check out this great article on MAP v4
This article explains the new features in MAP v4 including instructions on how users can fine tune their hardware assessments for Windows 7 and Windows Server 2008 R2 to their own hardware profiles. Additionally, it provides insight into the new features included in the server virtualization assessment.
Is MAP going to be compatible with Office 2010?
Yes, MAP 5.0 provide Office 2010 readiness information.
Check out the preview here.