Arindo from WP Admin Pages Pro just announced the release of version 1.7.0 along with an amazing new feature. It now supports custom dashboard widgets!
Now you can use Admin Pages Pro to create unlimited custom dashboard widgets. You can also replace the default WordPress welcome widget with your custom content, but keep its dismissible capabilities. Widgets will appear at the place in your admin page editor screen you’ve chosen. Once your customer changes it to another position it will remain there as this feature is saving user preferences.
Just in case you missed it: Arindo is also the developer of WP Ultimo, which allows you to build your own WordPress.com project. Recently, they announced a migrator tool for former WPMU DEV Pro Sites customers.