Apple will launch products in new categories and the company is working on "really great stuff", according to an interview with CEO Tim Cook in The Wall Street Journal this evening. He demurred when asked about specific possible products, but said anyone "reasonable" would consider Apple's upcoming products to be in new categories. Cook has said on prior occasions that new product categories are coming for Apple in 2014 and, with this interview, he is likely looking to encourage spooked investors that Apple is still focused on growth. Cook said in the interview that Apple remains a "growth company" and has significant opportunit