Bruce Lawson from Opera talks at O'Reilly's OSCON 2009 conference about HTML 5. en.oreilly.com/oscon2009/public/schedule/detail/8856
"Presented by Bruce Lawson (Opera Software ASA). A pragmatic look at HTML 5 by experimenting with converting a real site to HTML 5 - how does it work? Where it useful and where is it annoying? How is support in current browsers?"