Apple has made a QuickTime video of Steve Jobs’ WWDC keynote address yesterday in San Francisco available. “Watch Apple CEO Steve Jobs kick off the company’s annual Worldwide Developers Conference (WWDC) with a keynote preview of Mac OS X “Leopard” from San Francisco’s Moscone West. See the video-on-demand event right here exclusively in QuickTime and MPEG-4.” A video is also available of “The PC Guy,” who delivers his own greeting to the attendees of the conference.