[phkahler]

>> What made Wayland unsuitable to be used on mobiles?

From the old blogs it sounds like they really wanted buffer memory allocation done in the server/compositor due to limitations on some ARM GPUs. Wayland was never about resource allocation and doesn't want to be. One of the complaints about X was that it had a bunch of OS features like memory management, font rendering, etc. At a high level I agree that it seems dumb to have memory management in the display server, but that just in principle. In practice I can't say if the mobile concerns would be best addressed with Mir or Wayland, but I think it has been addressed in both. You can run Wayland on RasberryPi after all.