2010-May-03 - Today Microsoft made available for download to MSDN and Technet subscribers PowerPivot for Excel. You can install PowerPivot for Excel as a free add-on on Microsoft Excel 2010.

PowerPivot for SharePoint was also made available for download as integrated part of SQL Server 2008 R2 installation. To install PowerPivot for SharePoint you need to install SharePoint 2010 and then start SQL Server 2008R2 setup and choose installation option "SQL Server PowerPivot for SharePoint".