[bkor]

When Mir was announed, Wayland was already past 1.0. About 60% of the GNOME applications currently run under Wayland. See https://live.gnome.org/Wayland/Applications.

Note that Mir requires the exact same stuff. Just that nobody posted a patch to add such support. It is all distro specific.

[mercurial]

Not going to be integrated in upstream KDE in any case, see [1]. I don't think Gnome devs are particularly sanguine about it either.

As for me, I'm waiting for a hypothetical WLMonad.

1: http://blog.martin-graesslin.com/blog/2013/05/mir-in-kubuntu...