Including Sketchflow! Check out the Expression Web site and be sure to download the 60 day trial. Stay in touch with the Blend team by visiting the Expression Web blog:

New Blend 3 features:

Expression Blend 3 Features Streamline Photoshop Import

Expression Blend 3 enables the direct import of Adobe Photoshop files, ensuring a smooth integration with traditional workflows the designer may already have in place. On import, layers can be easily regrouped and elements retain their original formats; layers, layer positions, text and vectors remain available for editing within Expression Blend.