Check the full post for more details and charts; meanwhile, from an interview with Trump advisor Peter Thiel in the New York Times: "The age of Apple is over. Confirm. We know what a smartphone looks like and does. It’s not the fault of Tim Cook, but it’s not an area where there will be any more innovation."
"In its first 10 years, the iPhone will have sold at least 1.2 billion units, making it the most successful product of all time. The iPhone also enabled the iOS empire which includes the iPod touch, the iPad, the Apple Watch and Apple TV whose combined total unit sales will reach 1.75 billion units over 10 years. This total is likely to top 2 billion units by the end of 2018.The First Trillion Dollars is Always the Hardest | Asymco
The revenues from iOS product sales will reach $980 billion by middle of this year. In addition to hardware Apple also books iOS services revenues (including content) which have totaled more than $100 billion to date.
This means that iOS will have generated over $1 trillion in revenues for Apple sometime this year.
In addition, developers building apps for iOS have been paid $60 billion. The rate of payments has now reached $20 billion/yr."