For parents and others handing iOS devices over to kids, it might be wisest to lock down certain features so that children don't stumble across things they shouldn't, or accidentally wreak havoc upon your own device. Here's how.Related StoriesiPad 5 rumor rollup for the week ending July 23iPad 5 rumor rollup: Bigger screen, autumn release?Which Mac should you buy? Macworld buyers' guide 2013
