Earnings call revealed Apple saw lower than expected iPhone 5C sales in U.S., primarily because iPhone 5S sales exceeded Apple's projection. According to Apple CEO Tim Cook, the company's iPhone sales growth in North America was not as high as in some other countries probably because Apple underestimated demand for the iPhone 5S, with the iPhone mix being … [Read more...] about iPhone 5S exceeded expectations, took time to "Build the mix that customers wanted"