the following article/ comment summarizes everything.
However, i also guess there were political considerations, in particular
Canonical feel they got burnt by Gnome. That relationship was unsatisfactory
in terms of realising their mobile ambitions and convergence goals.
NIH was undoubtedly a factor, along with other factors – technical,
political and commercial.
Also I understand that Gnome, KDE, and other relevant projects, would prefer
to cater for Wayland as the only new emerging display server, and not another
display server as well (Mir).
Ultimately it’s Canonical own money, and so they can do what they want. But
in fairness to them, they have lofty ambitions of convergence, and commercial
imperative to deliver their vision.
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1- there were political considerations, in particular Canonical feel they got
burnt by Gnome
2- That relationship was unsatisfactory in terms of realising their mobile
ambitions and convergence goals.
3- NIH was undoubtedly a factor, along with other factors – technical,
political and commercial.
4- Ultimately it’s Canonical own money, and so they can do what they want.
Good luck in that, canonical! be ready to compete and lose money with the
competition, your money is just pennies to the competition.