Microsoft have released Windows 8 session videos from the BUILD conference that you guys and girls have to check out.
These videos give you great insight into what Microsoft is thinking and where Windows 8 is going.
This video is Anatomy of HTML5 sites and Metro style apps using HTML5
Learn how to build fast sites and apps for Windows 8 by learning the basics of a Metro style app using HTML5.
If you’ve played with angle brackets and CSS but don’t regularly write client-side JavaScript, this session is the place to start.