Yesterday, at Internet Week New York we launched Expression Studio 4. This new version is shipping just 10 months after Expression Studio 3 and includes support for Silverlight 4, the .NET Framework 4, and interoperability with Visual Studio 2010 and TFS 2010.
In this version we movined to a new SKU structure that aligns with the the new Visual Studio and MSDN SKUs. There are now three levels of Expression Studio: Expression Studio Web Pro, Expression Studio Premium, and Expression Studio Ultimate.
Expression Studio 4 Ultimate is available to download here: http://www.microsoft.com/expression/try-it/
Important Note: If you are developing in Silverlight for Windows Phone 7, please do not install the released version of Expression Studio 4. You must continue to use the Blend 4 Beta and Add-in Preview for Windows Phone. This Beta will be refreshed with each Phone SDK pre-release and will be unified with released Blend 4 in a service pack which will release when the Windows Phone SDK releases.