Some important fixes here.
FIX: When you query through a view that uses the ORDER BY clause in SQL Server 2008, the result is still returned in random order
FIX: The result for the Sum or Count function returns an empty value when you query a SQL Server 2008 Analysis Services cube
FIX: In SQL Server 2008 or in SQL Server 2005, the session that runs the TRUNCATE TABLE statement may stop responding, and you cannot end the session
FIX: The Processes pane in the Activity Monitor incorrectly shows sessions as head blockers in SQL Server 2008
Plus plenty of Reporting Services updates.