At Mix07 today, Microsoft announced that Expression Blend has gone RTM. Amazon.com is now taking pre-orders for the software and it will soon be available for purchase in stores. The estimated retail price will be $499 (although the Amazon.com price is showing $459).
Expression Blend will also be available soon in the Expression Studio package which also includes Expression Web, Design and Media and has an ERP of $599. A quick check at Amazon.com shows that they are selling it for $559 and it will be available on March 21st. According to Microsoft's website, Expression Studio also includes Visual Studio 2005 Standard Edition, (although I don't see any mention of Visual studio on Amazon's page for Expression Studio).
Also available for download is the first preview of Expression Blend 2. This version can create Silverlight-based applications. The download is available here
Several interesting Expression and Silverlight webcasts are now available on Microsoft's Expression website