Exposes a new resource to OAuth-based API's that identifies the user that has given access to the API-consumer.
This method is used by big API-providers like Twitter, LinkedIn and Digg to enable API-consumers to let the providers users log in to the consumer. Something that in at least Twitters case has been widely deployed.
This module provides a services resource exposing the user authorizing the consumer as well a Services endpoint exposing that resource and a OAuth context that provides authentication.