Node isn't really a framework. It's a server-side runtime environment for javascript. You could totally do something cool with it, Express js providing controllers, some sort of orm to your favourite DB providing Models and a template engine for views. Or, develop a backbone.js app for your frontend and make it talk to the api exposed by your controllers....no easy full stack like rails...yet...but it'll come, however I can't imagine it'll look too much like rails.