The Trello Tech Stack
Brett Kiefer has posted an awesome overview of the Trello stack on the Fog Creek Blog.
CoffeeScript, Backbone.js, HTML5 pushState, Mustache, HAProxy, Redis, MongoDB…
Brett does a great job of showing how to build a modern webapp with bleeding edge development tools as well as provides some thoughts as to why it might be a good idea to put development effort behind these relatively new tools.