Realtime Communications with Node.JS, WebSockets, & WebRTC

Have you heard about the latest advancements in HTML5 WebRTC (Real-Time Communications)? You can now develop audio and video-based web apps with native HTML5 (No Flash / No Java Applets)! We are building a Skype-killer using these technologies and it's called Twelephone (http://twelephone.com). We'll dissect our single-page realtime web app to show you how its built!