If there’s one toy guaranteed to captivate toddlers this holiday season, it’s the iPad, reports the Washington Post. What’s more appealing to a tot than blinking lights, fun sounds and touch screens that allow them to move things with the swipe of a tiny, sticky finger? A 2011 survey of parents by Common Sense Media, an organization that provides media education for families, found that 39 percent of 2-to-4-year-olds have used digital media such as smartphones and iPads. James Steyer, chief executive and founder of the group, is confident that number has risen in the past year…