As previously reported, Apple will webcast Steve Jobs’ Macworld Expo San Francisco keynote on Tuesday beginning at 9:00 a.m. PT. “Watch Apple CEO Steve Jobs deliver the Macworld Expo keynote address from Moscone Center in San Francisco,” reads a page on Apple’s Web site that was re-posted on Sunday after being unavailable since Dec. 22. “See the live webcast right here on January 6 at 9am PT exclusively in QuickTime and MPEG-4. It’s an event you won’t want to miss.”