Beware the Wi-Fi Assist!  If you are like most cellular users you don’t have unlimited data.  Now if you have spotty Wi-Fi you may inadvertently be using your cellular data while you are innocently sitting at home.  On AT&T?  That could cost you $15/GB for ever Gig over.  Watching Netflix could cost you a lot more than you think. (Read more on NetworkWorld below) The web has practically been clogged this week with posts providing tips about Apple’s new iOS 9 mobile operating system: Good thing Apple added Wi-Fi Assist to make sure you’re on the best connection possible to read all that stuff. Or maybe not. Source: Apple iOS 9 Wi-Fi Assist: Threat, Menace or Neither? | Network World