<A target="_blank" href="http://www.theregister.co.uk/2009/04/27/microsoft_biztalk_2009_release/">BizTalk Server 2009 is now available for MSDN</A> customers and will be released to the rest of the world on May 1. The new version of BizTalk Server works with Windows Server 2008, Visual Studio 2008 SP1, SQL Server 2008, and the .Net Framework 3.5 SP1.