I did a small intro to HTML5 at the last Refresh Colombo meetup last week. Here is the main presentation I used from html5rocks.com.

Here is a better list of resources as well. I specially like Dive Into HTML5 by Mark Pilgrim.

I met @geekaholic and @SeeJay of SinhalenFOSS at Refresh Colombo but had to head back soon after.

Thanks @nazly for the invite will try to hang around longer next time.

Update: Mark Pilgrim’s websites went away. I’ve changed the above link to a working mirror. Also you can get a PDF of the book from this site.