<p>The home screen of an iPhone 5 operating iOS 6, left, and an iPhone 5C operating iOS 7.(Photo: David Paul Morris, Bloomberg)Story HighlightsBugs in iMessage are also drawing criticismUsers complain of draining batteries, dropped WiFi, spotty Bluetooth connectionsApple says it is addressing some of the problems</p><p>SAN FRANCISCO Apple's iOS 7 launch is fast becoming its most troubled mobile operating system update, increasing concern that the technology giant has lost some of its magic touch since co-founder Steve Jobs passed away two years ago.</p><p>Since iOS 7 was released Sept. 18, the list of bugs and flaws has grown.</p><p>Draining batteries, dropping Wi-Fi and spotty Bluetooth connections are getting big boos across discussion boards at Apple's own support communities. Some apps are working poorly or slowly, the interface is harder to use for some people, and game players have also found faults.</p><p><a href="http://www.usatoday.com/story/tech/2013/10/17/apple-ios-7-problems/2986189/">Keep reading...</a></p><p>Read also:</p><p><a href="http://venturebeat.com/2013/10/18/ios-7-adoption-much-slower-than-ios-6-ad-network-says/">iOS 7 adoption &#039;much slower&#039; than iOS 6, ad network says</a> (VentureBeat)</p><p><a href="http://www.abcactionnews.com/dpp/money/consumer/dont_waste_your_money/iphone-owners-more-and-more-apple-appl-ios-7-problems">iPhone owners: more and more apple (appl) iOS 7 problems</a> (ABC Action News)</p><p><a href="http://www.phonesreview.co.uk/2013/10/17/forget-ios-7-0-3-and-release-7-1-already/">Forget iOS 7.0.3 and release 7.1 already</a> (Phones Review)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=dLS7FoOWipOWpSMiBjjEDCPPkVlQM&ned=us">17 additional articles.</a></p>