Feedback on Microsoft Patterns & Practices Workspaces (App Blocks) on gotdotnet

Ron Jacobs is looking for feedback on Microsoft Patterns & Practices Workspaces on gotdotnet (there are several spaces regarding the App Blocks). I think this is a good way to let MS know what you think (& experiences) with the P&P efforts. I am also looking forward to the Security P&P App block that is currently in the works.