This looks awesome. Sarah Gooding featured this CodePen embed plugin for WordPress over on the WPMU blog. CodePen is a great tool that I’ve been wanting to use more.
If you’re not familiar, it’s a project from Chris Coyier and a couple other folks, and it’s like jsFiddle plus a lot more. You can write code in HTML, CSS, and JS (plus a few libraries of these) and instantly see the output on the screen.
Their pro plan even allows Google docs style pair programming mode. Yep. Incredible.