Make sure to bookmark this page, or come back often, because later Tuesday we'll be posting live updates from the Macworld 2009 keynote speech right here.

Phil Schiller, Apple's senior vice president of worldwide product marketing, is scheduled to kick off the event at 9 a.m. PST at San Francisco's Moscone Center. We'll bring you live updates as Schiller goes through his paces.

Also stay tuned throughout the day for more photos, video, and reactions from the staff of CNET Reviews regarding any new products introduced by Apple. In the meantime, tide yourself over with the latest Macworld news including information about Apple CEO Steve Jobs' health.

It's not clear whether Jobs will make any appearance Tuesday at Macworld, but we'll let you know if he shows.