Do NOT install Exchange 2010 SP1 on your Edge/TMG server

If you are running Exchange 2010 Edge on Forefront TMG do NOT install Exchange 2010 SP1 on it yet. Doing so will lead to crash your TMG Managed Control service with the error

The Forefront TMG Managed Control service failed to initialize. Error information: Command failed with error: The term 'Get-AntiSpamUpdates' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again