Microsoft just yesterday release the new System Center Operations Manager R2 Admin Resource Kit - better late than never I suppose!
The feature set includes the following:
Scheduled Maintenance Mode
Ability to schedule and manage maintenance mode in the management group.
Helps remove all installed R2 components.
MP Event Analyzer
MP Event Analyzer tool is designed to help a user with functional and exploratory testing and debugging of event based management pack workflows like rules and monitors.
Download the resource kit from the URL below: