Service Pack 1 (SP1) is now available for the 2010 family of products, including Office, SharePoint, Project Server, FAST, Search Server, and Groove Server. Read this
wiki article for a summary of the improvements and fixes in SP1.
Important The Microsoft Business Intelligence Indexing Connector for FAST Search Server 2010 for SharePoint download is no longer available. Customers who have downloaded it as of March 2011 will continue to be supported as per standard support procedures. However, it will not be tested or supported for SharePoint Server 2010 SP1.