Today at Ember Fest I'm presenting a session called "Client MVC != Server MVC". In it I compare and contrast the Ember style of MVC with the Rails style. Here's a link to the slides for the talk, and to a bunch of bonus JSBins that step through the process of building up a simple Ember application.
http://jagthedrummer.github.io/ember_mvc/
Dynamic routes & Nested routes/templates
Pattern Lab - An Ember CLI demo app.
Pattern Lab API - A Rails app providing a JSON API for the Ember app.