I tweeted this last week and have mentioned it again a few times, but I wanted to ensure my readers watched this. Christian Heilmann is an evangelist for Mozilla and gave what I consider to be a damn good presentation on HTML5.
Now - I'll admit to having a bit of pride in hearing him praise Adobe here - but I especially liked the credit he gave to Flash developers. Say what you will about Flash itself, but some of the smartest, most imaginative developers spent years creating amazing web experiences and I don't think they get nearly as much credit as they deserve. Anyway - I'm probably a bit biased. Watch the presentation. It's definitely worth an hour of your time.