I do not mean this to sound cynical, but are people actually building full-fledged web apps with these frameworks? Where are they? Any public examples? I'm bui

I do not mean this to sound cynical, but are people actually building full-fledged web apps with these frameworks? Where are they? Any public examples? I'm building a large, complicated app for paying customers with Ember.js. Now that I've actually climbed the learning curve, I'm incredibly happy with the choice. The application has some large, CRUD-like components, but it also involves things like custom touch widgets and extensive drag and drop. However, it should be kept in mind that Ember.js (and more specifically, the unreleased Ember Data library) is not a mature framework. 95% of the features I want to implement practically fall from my fingertips, and it feels glorious. The remaining 5% require diving deep into the internals of Ember Data. I'm tolerably good at that sort of thing, so it's a reasonable choice for me. But people who don't feel up to reading the source should probably avoid using Ember Data and stick with using jQuery to load JSON into regular Ember.Object instances (which works fine). I haven't seen any big Angular apps first hand, but I know some former Backbone users who are diving in, and they also sound quite enthusiastic about their choice.