chrix Sorry for the late reply.
This is my own extension, this won't be as part of the new Admin UI in beta.6.
This, right now, just adds some content to the dashboard, and people can create their own widgets too.
In the future, this extension will totally change the admin interface, regardless if there is a new admin ui or not.
Remember that you can uninstall this extension if beta.6 does come with a better admin UI.