I'm liking how there are new projects popping up who all implement the flux pattern, but do so in different ways. I haven't looked into how this differs from something like fluxxor, but the example looks simple and easy to use. My one grip with the jsfiddle is a nitpicky one: that the McFly object is being given the Flux name... that could be confusing for people who are looking at this and also using the flux library from facebook (which has a different API).