While the GNOME and KDE projects are still working towards making their desktops run on the Wayland Display Server
rather than an X.Org Server, the Enlightenment project is also working towards bringing E17 window manager and libraries to Wayland. In fact, they have the first visible signs of success!
Posted to the Enlightenment Google Plus page
is a screenshot with a caption that reads "And EFL's Evas canvas library draws it's first Rectangle in Wayland !!"
Evas is the canvas rendering and display management library for E17. It's already been made to work on DirectFB in the past and uses OpenGL for accelerated rendering. Evas on Wayland will likely be of great interest to the embedded folks since the library is very fit and flexible.
Below is the E17 Evas screenshot under Wayland
provided by the Enlightenment camp. They obviously still have a ways to go, but there's progress being made.
Meanwhile for other desktop users, the GTK+ Wayland port is still considered experimental and the Qt support for Wayland should be in pretty good shape when Qt 5.0 is released in 2012. There's also still work pending on making the KWin compositing window manager compliant with Wayland.
Wayland will be talked about at FOSDEM in February