Well, Mac is a mature product line. True it might not be at the cutting edge of Apple's business but it is a highly profitable income stream for Apple. So it is not going anywhere.<p>I suppose there is a possibility of iPad cannibalising MacBook sales, but its pretty much apples and oranges.<p>That said, I cant help thinking that they might do some kind of Apple desktop app store where they can keep 30% of the app revenue, but give developers access to a well integrated distribution channel.