What you are describing is the same state as wayland currently. You can display remote MacOS apps via VNC and you can display and remote X11 apps but the native display protocol is not X11 and the X server is not where the graphics drivers live.
Posted Feb 20, 2012 12:41 UTC (Mon) by dgm (subscriber, #49227)
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Exactly. You will be able to run X11 on top of Wayland, the same way you can get it on OS X or even Windows.
The X11 protocol will still be used, but basically for where it really makes sense: applications running remotely on another host. Local applications will work better (less round trips, less display artifacts, less processes and contexts switches involved) on Wayland.