I’ve released an open source Rails application that provides an example of RESTful Authentication.
It provides a complete system for managing users, including sign up and verification of a new user’s email address, login with role-based access control, and a system of resetting forgotten passwords, all using a RESTful architecture.
You can easily customize the application for your own needs.
You can obtain the source code here:
It is based on recommendations from the forum discussion Restful Authentication With All the Bells and Whistles.
UPDATE: I’ve set up an account at Get Satisfaction for discussion and bug reports.
Posted by Daniel Kehoe 
