iOS is so stagnant it's not even funny. It's had three major overhauls that did absolutely nothing to it's functionality, roughly the same as Windows had in the same amount of time. Expanded functionality concerning USB class compliance, sideloading, on-device programming, VM compatibility, JIT-based recompilers for emulation and web browser diversity all go unaddressed. Things that are decidedly not a problem on Windows, MacOS and Linux.

Galaxy Tab users have been playing emulated games and run code locally for years. They don't have to wait for Apple to greenlight the API, Android can be modded and flashed to add whatever functionality it lacks. These up-in-the-air questions that plague Apple platforms aren't even a second thought on most others, because they don't resist common sense to try and create auxiliary markets.

> and what's new in Wayland?

Developers that want to work on it. I can count the number of "new features" in x11 on one hand.