In the midst of so much good news that came out of Apple in its fiscal Q1 report today, a significant milestore was also noted: the company said it had sold its one billionth iOS device, which it will keep for historical purposes. The device was said to be a 64GB Space Grey iPhone 6 Plus, and was part of the extraordinary 74.6 million iPhone sold worldwide in the holiday quarter. China sales played a major role as well, growing sales 157 percent from the previous quarter.