[kbuck]

I don't think it's entirely a corporate move here. Free software contributions aren't infinite; if you have $N developers working on integrating support for display servers, then it's simple math that having to support two display servers means that you'll have $N/2 developers working on each, and will therefore get half the work done (and, since they'll probably still have to support X11 for a while, make that $N/3). Ubuntu selfishly forked Mir instead of choosing to try to use Wayland (especially when they had originally committed to using Wayland[1]), so the burden is on them here. It also doesn't help that Canonical employees were using the inclusion of XMir support as political fodder[2].

[1] http://www.markshuttleworth.com/archives/551 [2] https://twitter.com/olliries/status/375704285083738112