Dear rails users,
I've released a 2.0.1 version of the auth_generator. The auth_generator offers an admin interface as well as other features like gravatar support, theme support, a group like support (we call it domains), and all you would wish from such a generator. It's used on website with thousands of users, no problem.
Please take a look. We'll be pleased to get feedbacks and ideas about new features. You can use the auth_generator development list or the online trac.
The auth_generator is available at http://penso.info/auth_generator/