Microsoft recently added documentation for managing Sharepoint Online with Powershell. (As of July 16, 2012 -- this is new). An introduction to this important for administrators appeared in TechNet at the URL http://technet.microsoft.com/en-us/library/fp161362%28v=office.15%29.aspx. This is a new feature, and an example of how Microsoft continues to add features to Office 365 going forward. Microsoft has added support for a Sharepoint Online management shell, which allows rapid management of such features as user and permissions.