An article on Forbes today looks at Steve Jobs’ much anticipated keynote address tomorrow at Macworld Expo in San Francisco. Author Rich Karlgaard says there are three reasons why “this year the stakes couldn’t be higher, the timing more dramatic.” According to Karlgaard, the three principle reasons why this keynote is important are: will Jobs finally announce Apple’s iPhone and will it be a game changer?; the options backdating scandal; and the health of Steve Jobs.