I haven't seen Meteor.js mentioned here yet, which is a shame. It's great for quickly building out MVPs due to their out-of-the-box real-time functionality. Th

I haven't seen Meteor.js mentioned here yet, which is a shame. It's great for quickly building out MVPs due to their out-of-the-box real-time functionality. Things can get a bit bogged down once there are a certain number of components that chain update each other and Meteor still primarily uses Mongo, but neither should be a problem for a MVP.