Apple CEO Tim Cook has revealed that the company's design guru, Sir Jony Ive, has been "key" in the development of iOS 7, further hinting at an all-new design for the next-generation of the mobile operating system, which is set to be unveiled at WWDC on 10 June.Related StoriesApple will open up software APIs - Tim CookLawyer tracks down stolen iPad with help from Apple, Find My iPhone when police were unavailable
