AUSTIN, Texas--Daniel Ek was waving his arms in the air, as if molding invisible clay. He swiped his right hand karate-chop style, made a big loop, and then grabbed an imaginary dial with his left and twisted his fist.
Ek, you see, was talking about the future. In this not-so-far-off future, maybe a decade from now, we're all connected, everywhere, all the time -- perhaps via Google Glass, perhaps via sensors built into our clothes, or through other wearable computing devices. Our touch-screen life will require no touching whatsoever, as we control what we're listening to or seeing … Read more