1. Apple and Microsoft have both developed these things for 40 years without the fees and restrictions. They do it for the health of their ecosystem to sell devices/OSes.
2. The only reason there are two mobile OSes with significant marketshare (instead of more than two) is the app library. WinMo never took off because even though it was a wonderful OS, they couldn't get developers to make apps. It's hard to imagine now that any party, even one with practically infinite money like Amazon or Apple or Samsung, could develop a successful mobile OS because they'd be launching with two million fewer apps.
Chromebooks have been selling briskly with a relatively new OS because people no longer cared about apps on desktops when everything started working in a browser. This is the obvious attack vector for phones. If you can do everything in a browser you can do in an app, the door is open for another OS. That's why Apple doesn't want third-party browsers.
1. Apple and Microsoft have both developed these things for 40 years without the fees and restrictions. They do it for the health of their ecosystem to sell devices/OSes.
2. The only reason there are two mobile OSes with significant marketshare (instead of more than two) is the app library. WinMo never took off because even though it was a wonderful OS, they couldn't get developers to make apps. It's hard to imagine now that any party, even one with practically infinite money like Amazon or Apple or Samsung, could develop a successful mobile OS because they'd be launching with two million fewer apps.
Chromebooks have been selling briskly with a relatively new OS because people no longer cared about apps on desktops when everything started working in a browser. This is the obvious attack vector for phones. If you can do everything in a browser you can do in an app, the door is open for another OS. That's why Apple doesn't want third-party browsers.