Microsoft Expression Blend Preview for Silverlight 5

Expression Blend Preview for Silverlight 5 provides support for creating Silverlight 5 projects, including Silverlight 5 SketchFlow projects. Expression Blend Preview for Silverlight 5 installs side-by-side with Expression Blend 4.
Expression Blend Preview for Silverlight 5 supports only Silverlight 5 projects. For Silverlight 3 and 4 projects or WPF 3.5 and 4, use Expression Blend 4.