Inkling, a prediction market platform on Rails, launched integration with Facebook Connect. This is one of the first RoR apps to do Facebook Connect, I think. You can publish any trades or comments you make at the Inkling public site. We sent some details of our implementation to Mike Mangino to help in getting something added to Facebooker to help in implementing Connect. So watch that space if your looking for any help, or feel free to leave comments on our blog post about it and we’ll try to answer questions when and where we can. I must admit putting this together has definitely gotten me more addicted to using Facebook, which I’m sure was part of Facebook’s plan to take over the world. So handle with caution. :)