We are a startup called Glancee. We build a mobile app (iphone version + android version) that finds people in your area with friends or interests in common wit

We are a startup called Glancee. We build a mobile app (iphone version + android version) that finds people in your area with friends or interests in common with you. The apps are native objective-c and java apps, and the backend is a mix of python, mondodb, and a bit of erlang. A month ago we decided to build a facebook app to reach users that don't have a smartphone. We chose not to change one bit of code in the backend, and we were able to build the web app in 3 weeks with backbone, jquery, and websocket-js. You can try it here: http://apps.facebook.com/glancee http://apps.facebook.com/glancee The app is just one 40-line html page, the rest is javascript (and templates embedded in js). You never refresh the page when clicking a link, which gives you the feeling of using something as fast and robust as gmail. CSS files and JS files are compressed with requirejs before being deployed, so to load the page you need three requests (plus images). Right now our biggest bottleneck is the facebook api, which is tremendously slow.