Implicit user creation with Authlogic and Authlogic OAuth plugin - Stack Overflow

I'm trying to write a simple OAuth consumer app in Rails. I'm using Authlogic for handling authentication and the Authlogic OAuth plugin to do the oauth thing.

The oauth plugin provides a couple of helpers to render the sign in button: oauth_login_button and oauth_register_button. Together with the Authlogic logics and the plugin's request filters these two buttons somehow create the session/user.