SA customers can download new MDOP 2009 R2 for Windows 7 from Microsoft Volume Licensing Site (MVLS), just in time for the official release of Windows 7 operating system. If you want to evaluate MDOP, evaluation versions can be downloaded from MSDN and TechNet.
MDOP can give you fast ROI on deployment and integration process of Windows 7:
Optimize Windows 7 deployment using Application Virtualization, reducing PC provisioning time, simplifying application delivery and update, and increasing productivity with user roaming
Enhance Windows 7 manageability, by addressing common system/application failures (with DEM), repairing unbootable PCs (with DaRT), and controlling Group Policy change (with AGPM)
MED-V and AIS are also in the final stages of finalization and can be expected to be release in Q1 and Q4 of 2010 respectively.
More info can be found on official MDOP blog.