iPhone 6S Shows How Apple Intends To Keep Its Profit Machine Running

Apple unveiled a host of upgraded products - including a larger-screen iPad, a revamped Apple TV and updated versions of its bread-and-butter iPhone - at a media event held on September 9. Although we didn't see anything that was truly transformative, the event did provide confidence that Apple's innovation engine is humming along nicely and that its core business strategy remains well thought-out. This was particularly visible with the iPhone - Apple's biggest valuation lever, that accounts for...