A few updates to the System Center > Operations Manager 2007 Management Pack Development Kit tab on the MSDN network. Updates to the Elements Reference, Data Types Reference, Module Types Reference, and the Schema Types Reference.
They can all be found here: http://msdn.microsoft.com/en-us/library/ee533840.aspx
The long awaited Windows Power Management Pack for System Center Operations Manager 2007 R2 is not available for download. This MP will monitor power usage on Windows 2008 R2 systems, and will give visibility into Power consumption, control of power policy, ability to lower power consumption during non-business hours to reduce overall power consumption, limit power consumption, and ability to detect excessive power consumption.
For more documentation and management pack download see: http://www.microsoft.com/downloads/details.aspx?FamilyID=6f147c1f-e190-4dbe-a3c7-9b9a19de8f93&displaylang=en