How to integrate openId with devise in rails 3

I'm new to rails and just got a simple devise setup working. I'm looking to implement something that still uses the core devise feature set but would allow login via openid provider rather than "register w/ email or username"

How might I get started with this using the latest devise gem a开发者_高级运维nd rails 3?

Have a look at the devise_openid_authenticatable gem.