Walter Isaacson, who is best known for writing the authoritative biography of Steve Jobs, is walking back some of his criticisms of Apple. A couple of weeks ago, Isaacson said that Google had taken over Apple’s role as the tech world’s biggest innovator and suggested that Apple would have already released another game-changing product by now if Jobs were still the CEO. “Steve Jobs was a disruptor,” Isaacson said at the time. “I think that now Tim Cook has done this big thing in China, he’s got two things to do now: take over the company … In the late February shareholders meeting, they probably have to start thinking about who should be on the board next. This board is