I do not see it documented, and dev.twitter.com/doc<http://dev.twitter.com/doc> is throwing 403's on searches, but I do see that your own "http://twitter.com/settings/connections"; "Revoke Access" links call this on the click event.
I am trying to provide our users a clean UI for managing all of their OAuth enabled networks/sites, and twitter is one of those. Both Facebook and Google (their OAuth contact API) provide API calls to revoke a user's access_token/session_key. Thanks, Robbie Coleman Software Cleric & Social Shaman Gravity -- Subscription settings: http://groups.google.com/group/twitter-development-talk/subscribe?hl=en
