I love how they align it to an addiction to Facebook and Twitter. Perhaps for tweens and idiots, that is all its useful for. But to paint the smartphone in such a corner is a poor argument.
Let's see, in one compact divice, I have a phone (duh), texting and a list of my contacts. Exactly like a dumb phone.
Then I also have a GPS, email, web, camera, banking, music, flashlight, movies, child's games, etc.
For as "free" as someone might feel not having one, I have to wonder how many other discrete devices they are then buying and lugging around to fulfill many of those retained requirements.
For me, having a smartphone is freedom. I work and I work hard. I'm very involved in multiple high profile and high visibility programs and projects. Having a smartphone to keep up with everything going on means that I can do more, yet retain freedom and some flexibility without being disconnected. It removes stress and increased awareness of things in executing.
That's efficiency and innovation and work ethic. That's good, and it's beneficial.
That must be disconnected from knowing when to turn it off (crack berry syndrome), maintaining good work/family balance, and wasting huge sums of money by poor people to have gadgets they can't afford and only use to waste time.