What would Apple become in a post-Steve Jobs world? It's hard to say. Undoubtedly there is enough talent in the company's engineering and design teams to keep making innovative products that consumers will covet. But is there anyone who can lead that team as effectively as Jobs? Can anyone make the tough and risky calls that have defined Jobs' resurrection of that company? I have a hard time imagining any of the Apple's current execs--including the company's low-key , who will now be filling in for Jobs--stepping into that role with the same fire and intensity that have become synonymous with the name of Steve Jobs. And without that caliber of obsessively driven leadership, it's difficult to imagine how Apple, the underdog brand in the PC platform war, can continue driving its market share upward against Microsoft's pervasive presence.

Besides, who else at Apple can get so much mileage out of a simple, black turtleneck?