Yes, Apple managed to sell 1 billion iphone in 9 years despite the stagnant iphone's sales in recent earning record. That's about one iphone for every three people with internet access. According to Apple CEO, Tim Cook:
“iPhone has become one of the most important, world-changing and successful products in history. It’s become more than a constant companion. iPhone is truly an essential part of our daily life and enables much of what we do throughout the day.
“Last week we passed another major milestone when we sold the billionth iPhone. We never set out to make the most, but we’ve always set out to make the best products that make a difference. Thank you to everyone at Apple for helping change the world every day.”No matter what fan tech you belong be it android, windows etc. you will agree with me that this is a rare milestone in tech because it took 25 years for the computer industry to ship its one billionth PC.