For real: Fisher-Price's Laugh & Learn Baby iCan Play Case protects an iPhone while baby plays with apps. Stan Honda/AFP/Getty Images hide caption itoggle caption Stan Honda/AFP/Getty Images Shots - Health News Will Smartphones And iPads Mush My Toddler's Brain? October 22, 2011 Research suggests that toddlers under 2 don't learn from television — and in fact, TV viewing, even in the background, could harm their development. But what about content on mobile screens? The answer may depend on how you're using them.