Just completed the Building Web Apps with HTML5: Beyond the Buzzword at RailsConf. The tutorial was well organized, had a quick pace and finished early, which is a good sign in my book. I'm not a fan of having a mad rush at the end to get everything finished. The tutorial itself was mostly self-directed with some discussion throughout so I'm not sure how much value was added by the instructor or doing it as a group.
Overall, well worth the time to get your feet wet with these emerging technologies. You can complete the tutorial yourself at: https://github.com/subelsky/html5tutorial. Thanks Mike Subelsky for your efforts.
One useful resource referenced throughout the tutorial is the website Dive into HTML5. Check it out.