It appears that the WWDC keynote isn’t being streamed over Quicktime (at least, not that I’ve been able to find). However, MacRumors has set up a special auto-refreshing live site where they’ll be posting the latest keynote coverage (technical details of their AJAX based approach here). There’s also an IRC channel if you can’t wait for a schedule refresh, or if you like your news piping hot and mixed with lots and lots and lots of chatter.