Does Mir's existence have anything to do with Wayland's slow development? I read (source unavailable, sorry) that Canonical grew frustrated with Wayland's crawl and decided to make their own.
Again, not sure if this is the case.
Again, not sure if this is the case.
You can consider this good (more doing, less talking) or bad (not invented here syndrom).
Qt5 now works on Wayland - and KDE has a release coming up (the dev code already works on Wayland)
Note that Mir requires the exact same stuff. Just that nobody posted a patch to add such support. It is all distro specific.
As for me, I'm waiting for a hypothetical WLMonad.
1: http://blog.martin-graesslin.com/blog/2013/05/mir-in-kubuntu...