John Carmack, the co-founder of id Software and lead developer of the Wolfenstein 3D, Doom, and Quake games, among others, is apparently interested in Wayland. Yes, actually the Wayland Display Server. He just used his Twitter account to share that he wishes he had the time to contribute to it and then linked to Mark Shuttleworth's blog post announcing Ubuntu will be switching to Wayland with their Unity desktop.

It will still be some time (at least two years in reality) before Wayland will likely become the default and the proprietary graphics driver vendors like NVIDIA are not active about supporting Wayland due to their KMS and GEM requirements, but Mr. Carmack for whatever reason is actually interested in this work, if only he had time to contribute. There's also been more Wayland activity on the mailing list in the days following Mark's announcement.

Besides Ubuntu, Intel wants to use Wayland on MeeGo Touch in a future release.