As a way to get her newborn infant son to sleep through the night, mom Janet Vasquez decided to use her recently bought iPhone for the often-difficult task. She downloaded several applications, including “BabySoothe” and “Lullabies”, and set them running throughout the night in close proximity to her baby’s head. “My goal was to use the applications and the phone as a pacifier,” said Ms. Vasquez. She isn’t alone. A recent feature article in The New York Times ’ Sunday Styles section was titled “Toddlers’ Favorite Toy: The iPhone.” It recounted how parents utilize applications to help with...