The new advice also comes with tips for older kids. Those between 2 and 5 years old shouldn't use screens for more than an hour per day, and then only for carefully-screened programming. And if they're older, it's still important to both set "consistent limits" and make sure that device time doesn't affect physical activity, play or sleep.

The AAP is quick to acknowledge that it's keeping up with the times. The media world is "constantly changing," it says. The trick is balancing technology with babies' developmental needs. A tablet can help your children expand their budding vocabularies or learn new concepts, but they still need to be old enough to process what they're seeing.