Only a few hours are left until Apple's Worldwide Developers Conference kicks off in San Francisco, with Tim Cook set to get things off to a flying start with his now customary keynote. During that keynote Apple is expected to unveil a raft of new software additions and updates, each carrying quite the weight of expectation. One of those updates is iOS 9, likely to be shown for the first time during WWDC with an early beta being made available to developers soon after.
