It was my understanding that those involved with or in the know about both Wayland and Mir felt that Mir is a project in a very early state of development [0][1] that was started for the wrong reasons [2]. Could you point me to a knowledgeable person who doesn't work for Canonical who mentions that some significant good idea(s) from Mir worked their way into Wayland? :)

[0] http://mjg59.dreamwidth.org/26254.html [1] http://mjg59.dreamwidth.org/27327.html [2] http://blog.martin-graesslin.com/blog/2013/05/mir-in-kubuntu...