I do know that Ubuntus want to distrubute across various form-factors with tablets and phones as priorities. Windows 8 is , well, "years ahead " as far as working on both tablets, phones AND desktops. Actually the Win 8 almost functions just like gnome-shell. So with new Mir server comming I am thinking that there is a lot of scrambling in the back-rooms of Canonical to come up to par competetion with MS. We are feeling the brunt of it now. I guess we have to go one day at a time and see how it all pans out.