Apple today announced iOS 9, the world’s most advanced mobile operating system, will be available on Wednesday, September 16 as a free update for iPhone, iPad and iPod touch users. iOS 9 makes iOS devices more intelligent and proactive with powerful search and improved Siri features, all while protecting users’ privacy. The way you interact with iPad gets even better with iOS 9, thanks to new multitasking features that let users view and interact with two apps at once, side by side. With Picture-in-Picture, users can play video while browsing the web, composing email or using other apps. Built-in apps become more powerful with a redesigned Notes app offering new ways to capture ideas,…