We've all heard the criticisms: kids watch too much tv. They play too many video games. They're over-programmed and don't get outside enough. But is it really true? And why does it matter?

According to David Elkin, author of The Power of Play: How Spontaneous, Imaginative Activites Lead to Healthier, Happier Children, our moms and grandmothers had some things right. Our kids are too plugged in and it's impacting their development.