The VMM 2012 cmdlet help topics and about topics are now LIVE on TechNet!! Soon you will be able to use the –online parameter for any of the cmdlets and get directed to the appropriate cmdlet on TechNet
Link to the Cmdlet Help topics: http://technet.microsoft.com/en-us/library/hh801697.aspx
Link to the Cmdlet Help About topics: http://technet.microsoft.com/en-us/library/hh801913.aspx
An accompanying Cmdlet Reference has been published in the download center and its a whoping 2500+ Pages :)
Link to the Cmdlet Reference: http://download.microsoft.com/download/D/7/A/D7ABAD5E-24E2-414E-99D4-B786D6EBE189/SystemCenter 2012 - Virtual Machine Manager Cmdlet Reference.doc
Sweeeeet. About to start taking this baby for a test drive.