Today’s earning's call revealed that Apple saw lower than expected iPhone 5c sales in the United States, primarily because iPhone 5s sales exceeded Apple’s projections. While Apple did not break down sales between individual iPhone models, the company did indicate that the iPhone 5c ended up representing a smaller mix of iPhone sales than anticipated. According to Apple CEO Tim Cook, its iPhone sales growth in North America were not as high as that seen in other countries partially because Apple underestimated demand for the iPhone 5s, with the iPhone mix being "different than we thought." He also mentioned changes to domestic carrier