I'm shocked at how fast Wayland is coming together. It's inspiring to watch.
Edit: Can't seem to reply to child, but Mir isn't really a credible competitor (See: http://aseigo.blogspot.com/2014/03/more-on-why-display-serve... . Unfortunately Mir seems to be mostly NIH; everyone else is cooperating on Wayland.)
Until early 2014, I along with my team at Red Hat were busy building RHEL7. RHEL7 development has slowed down now, and full-time Wayland development has started.