I presume you're referring to this: http://news.ycombinator.com/item?id=1882476 http://news.ycombinator.com/item?id=1882476 Pieces of the critique definitely a

I presume you're referring to this: http://news.ycombinator.com/item?id=1882476 http://news.ycombinator.com/item?id=1882476 Pieces of the critique definitely apply to this release: I'm still of the opinion that routing is a relatively small portion of a client-side app. And you'll probably wind up with 10x more Views, Models, and Collections than you do Controllers. The big difference between this approach and Sammy's is that here Controllers are just a library you can use -- with Sammy you structure your whole app around inappropriate faux-server-side-URLs-with-HTTP-methods. (Also, this works in Internet Explorer.) In the end, enough people requested we add routing to Backbone that it made sense to plug it in, one more battery included.