Matt DeGennaro and Andrew Rota of our Javascript team recently spoke at the BostonJS meetup on a library we have written called Tungstenjs, which we have opensourced today. It takes the fast-virtual-dom-update idea from React.js and makes it usable with other frameworks, including Backbone.js. It ships with a Backbone adapter. There's a server-side component too, using npm and Mustache templating, but perhaps I should just let the 'readme' tell you: https://github.com/wayfair/tungstenjs. We've been using it on Wayfair, and it's awesome.
