Sales of the iPhone 6S and 6S Plus haven't been as stellar as the 6 and 6 Plus.Andrew Cunningham reader comments 10 Share this story Apple's quarterly profit fell 27 percent in Q3 2016, to $7.80 billion from $10.68 billion a year ago, but the company's shares rose today as the earnings beat analysts' expectations. Quarterly revenue was $42.36 billion,...