Office 2010 SP1 & SharePoint 2010 SP1 are now available for download
Here is the official Office Team Blog announcement with more details: Official Office Team Blog Announcement
And for SharePoint: Service Pack 1 Changes to SharePoint 2010
SharePoint 2010 and Office 2010 Service Packs 1 are now available for download. Here are the direct download links:
Service Pack 1 for SharePoint Server 2010
Service Pack 1 for Microsoft Office 2010 (KB2460049) 32-bit Edition
https://www.microsoft.com/download/en/details.aspx?id=26622
Service Pack 1 for Microsoft Office 2010 (KB2460049) 64-bit Edition
https://www.microsoft.com/download/en/details.aspx?id=26617
And the KB articles listing an overview of the SP1 improvements and technical details:
KB2460049 Description of Office 2010 SP1
https://support.microsoft.com/kb/2460049
KB2532118 Technical details about the Microsoft Office 2010 Service Pack 1 (SP1) releases
https://support.microsoft.com/kb/2532118
Excel spread sheet of fixes: Issues Fixed by Service Pack 1 (SP1) in the Office 2010 Desktop Applications
Also the latest version of the Group Policy template files and OCT files for the SP1 release of Office 2010 are also now available for download:
Office 2010 Administrative Template files (ADM, ADMX/ADML) and Office Customisation Tool
https://www.microsoft.com/download/en/details.aspx?displaylang=en&id=18968
Office 2010 Administrative Template files (ADM, ADMX, ADML) and Office Customisation Tool