We're in the process of implementing twitter auth into a service that already supports OpenID. As such, we are using a URL as the user identifier, which is the standard idiom in the OpenID world. Since a user can change their screen name, the twitter profile URL is not reliable for use in authentication and we must use the id field. Does there currently exist a URL on twitter which will accept a user_id as the parameter and redirect to the user's (current) profile page?
For example, using Doug W's user_id (1401881) and screen name (dougw) as an example, does there exist a URL on twitter such that http://twitter.com/users/profile?user_id=1401881 redirects to http://twitter.com/dougw? If not, would you be willing to add such a feature? Thanks, Brian Ellin (@brianellin) http://rpxnow.com/
