If used together with the Registered Users Only plugin (http://wordpress.org/extend/plugins/registered-users-only/) then the redirect after successful login does not work.
The Registered Users Only redirects any users to the login page if he is not logged in. If logging in with the RPX plugin then on successful login the redirect points straight back to the login page. It is then possible to click on the 'Back to [blogname]' on the top of the page. BUT the average user will think the login was unsuccessful.
An option to turn of the automatic redirect would be nice. Even better would be to never redirect to the login page or the registration page. Just check if the redirect variable is one of those, and redirect to the blog front page if that is the case.
