Kelly A. Mahoney

On the way to a recent conference, I noticed the digital billboards in the airport -- the kind that shifts messages every 30 to 60 seconds. The overhead screen launched a stream of messages as throngs of passengers on cell phones rushed past. Jumping into a cab, I noticed that the digital portal on the back seat offered sports scores and the latest news. At the hotel, I was greeted with a sign-in kiosk as an alternative to the front desk, which allowed me to upgrade my room. And as I dashed into the elevator, a major network show was playing on a