Apple will Webcast Steve Jobs’ Macworld Expo San Francisco keynote next month, according to a new page on the company’s Web site. “Watch Apple CEO Steve Jobs deliver the Macworld Expo keynote address from Moscone Center in San Francisco. See the live webcast right here on January 6 at 9 a.m. PT exclusively in QuickTime and MPEG-4. It’s an event you won’t want to miss,” the page reads.