In this video Kiranmayi Bhattaram is going to talk about using JavaScript frameworks, particularly Backbone.js, with Rails:
Web apps have been getting more JavaScript-heavy, and nested piles of callbacks are no fun. Backbone is a backend-agnostic library that helps you impose an MVC flavor on your JavaScript. Kiran will cover the basic components of Backbone and how to integrate it with your Rails app.
Here are Kiranmayi's slides: