While I don't disagree with anything in the article, I think it, and most commentators, are thinking too small.<p>When thinking about wearable computing, one big challenge is to take a small, weird-shaped form factor, like sunglasses or watches, and cram enough computer hardware in there to support all the features that people want.<p>Why not stick a computer in the headphones? Between the earmuffs and the headband, there's a lot more room to stick a computer into a set of Beats than there is in a wristwatch.<p>I can imagine being able to listen to the Beats music service using just the Beats headphones, and not even needing to connect them to a computer.