A Newsweek column on continuous partial attention:

But there's a problem in the workplace when the interruptions intrude on tasks that require real concentration or quiet reflection. And there's an even bigger problem when our bubble of connectedness stretches to ensnare us no matter where we are. A live BlackBerry or even a switched-on mobile phone is an admission that your commitment to your current activity is as fickle as Renée Zellweger's wedding vows. Your world turns into a never-ending cocktail party where you're always looking over your virtual shoulder for a better conversation partner. The anxiety is contagious: anyone who winds up talking to a person infected with CPA feels like he or she is accepting an Oscar, and at any moment the music might stop the speech.

In her talk, Stone was careful to acknowledge the benefits of perpetual contact. But her message is that the balance has tilted way too far toward distraction, creating a sense of constant crisis. "We're not ever in a place where we can make a commitment to anything," she explained to me when I called her a few days later. "Constantly being accessible makes you inaccessible." All so true. But during our conversation, some auditory clues led me to ask her one more question. "Linda," I asked, "are you taking this interview while driving your car?" She admitted that she was. But as long as she didn't have to slam the brakes or dodge a pedestrian, I had her continuous partial attention.