Apple’s earnings and revenue growth in mobile have been awe-inspiring to witness. From zero presence three years ago, Apple is now the most profitable cell phone maker in the world. Apple’s success in this compressed period has helped it become an enormous buyer of components. In fact iSuppli projects that next year Apple will become the second-largest semiconductor buyer worldwide and may edge out HP in 2012 to become the world’s largest. Though this scale presents Apple with enormous bargaining power, it also begs the question: Should Apple own its own wireless chip development?