It is said that the rapid growth of PC is due to the separation of hardware design and production and software suppliers, especially the separation of operating system suppliers and hardware manufacturers. The failure of Apple's software and hardware integration to PC is the best evidence.
However, in the mobile phone field, this concept seems to have to be changed, and the concept of integration is coming back.
Apple naturally uses the original method, from hardware to software integration.
Google also began to expand its control and complete its acquisition of Moto mobile phone production.
Microsoft won't be surprised if it will eventually launch an acquisition of Nokia.
However, in my opinion, it is only the integration of hardware and software that the fight is not over yet. It is not long before we can see that the three major companies have begun to acquire or cooperate with telecom operators, to achieve true and comprehensive integration.
The war started, after Microsoft's mango entered the market.