Dasher is a plugin that replaces the WordPress Dashboard with something more suitable for a multi-user blog with users who aren’t interested in WordPress development news. It includes an example welcome message in a separate file for easy modification.
Dasher is pretty simple (crude?). If you’re looking for something more feature-ful you probably want X-Dashboard.
Download dasher.zip.
dasher is not compatible with the WP2.0 richtext thing