Built a real-time multiplayer game with HTML5 in less than 30 minutes

Basic tutorial to built a real-time multiplayer game in HTML5 using the Couchfriends Controller API. This tutorial will help you building your first multiplayer game in four easy steps.

See http://www.couchfriends.com/posts/4-built-a-real-time-multiplayer-game-with-html5-in-less-than-30-minutes for the tutorial. Each step is in a separate folder. 4 is the final version.