That would be awsome a node.js framework which helped to make this kind of single page apps. I've been thinking about that since I discovered backbone.js.<p>I'd love to define models just once and that they would work server side (using a ODM like mongoose) and client side (using backbonejs).<p>Is there something like this out there? If not maybe I'll try to make it this summer (having final exams at the moment).