IPhone good for preschoolers?

This is an article in the Boston Globe about the benefits of letting a 3-year-old use an IPhone. He's serious.

If done the right way, with the right limits, handing a preschooler a smart phone could be good not just for the parents’ sanity. It might even be good for the child’s development.

His point seems to be it's good to learn technology young, and the fact that the IPhone uses icons instead of words makes it even better for them. Sigh.