Rails3 Omniauth-Devise supercombo

As bare as you could get devise-omniauth combo

for a full featured example with tests! See Parker Thompson’s fork:

github.com/pt/devise-omniauth-example

Basic model storing the user_id, provider, & uid.

github.com/plataformatec/devise/wiki/OmniAuth:-Overview