PC World writes: "It sounds like a B-grade movie plot: Millions of smartphone owners are being tracked by their phones. Their mobile apps are eavesdropping on them, too. And information about their whereabouts is being sold to third parties.
But it isn't science fiction. If you own a smartphone and download popular apps, the odds are good that your smartphone knows more about your day-to-day travels than your spouse does. Apple, Google, and Microsoft are in the hot seat now, having to explain how iPhone, Android, and Windows Phone 7 handsets really work, and what they know about where you go and what you do. Predictably, the lawsuits are flying."