Each week Ross Rubin contributes Switched On, a column about consumer technology.
At the introduction of the iPad, Steve Jobs showed a simple slide illustrating one of the burning questions in the industry for many years. On the left was a smartphone. On the right was a laptop. And in the middle was a gap. Apple, like many companies in the PC industry, was seeking to create a product that filled this gap. Indeed, the iPad itself reflects elements of the Apple devices that flank it. Its enclosure resembles the silver metallic enclosure of a MacBook Pro, but inside, it
