SharePoint 2010 Service Pack 1 (SP1) has been announced with a expected end
of June release. Complete details on the announcement of Service Pack 1 for
Office and SharePoint 2010 can be found at:

http://blogs.technet.com/b/office_sustained_engineering/archive/2011/05/16/announcing-service-pack-1-for-office-2010-and-sharepoint-2010.aspx

Details are forthcoming, but highlights for SharePoint 2010 SP1 include:

• Better alignment between Project Server and SharePoint Server browser
  support.
• Improved backup / restore functionality for SharePoint Server

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