Operations Manager SP1 RTM command shell requires Powershell scripts to be digitally signed

After installing SP1 RTM, I noticed that Powershell scripts that I frequently run will no longer run unless I digitally sign them or modify the execution policy. For those who do not have code signing certs and want to modify the execution policy, run the command set-executionpolicy unrestricted.
This is not a suggested setting!, but will allow you to run scripts whilst you work through the procedure to buy or create your own authority. For details on creating your own signing certificate, run get-help about_signing