http://raspberrypi.collabora.com/ though Daniel Stone is intending to update that (hopefully soon) so the .debs include a weston-launch script that does the necessary XDG_RUNTIME_DIR setting and misc setup for a simple easy to run demo.
Very cool. There seems to be a lot of very detailed posts from the Wayland/Weston developers recently, is this coincident with the Mir (for want of a better expression) fork?
Still, the synchronization and swapping between GLES and using hardware overlays is a problem that has been solved for sometime on Android. Unfortunately this magic maybe hidden in a proprietary framebuffer Android HAL or more recently the platforms hardware composer HAL.
This is pretty actionable stuff. I really like the discussion around the trade-offs. So an interesting question is on my Zynq-7000 Zedboard what sort of Framebuffer would you design to be the "ideal" Wayland or Mir target?