I think this is a lot of work. Ubuntu and Canonical haven't been big on diverging heavily from GNOME or Debian. Since GNOME is moving to Shell and the Mutter window manager, this appears to mean that Ubuntu will be forking. Do the Canonical devs have the dedication to make this happen? How buggy will the first version of this forked window manager be? Will the windicators (I grimace even writing it) provide true benefit.
UI." These indicator additions seem like smart and intuitive additions to the WIMP desktop model.
If Ubuntu diverges from GNOME (and probably Debian, since it rarely customizes upstream projects more than necessary) by ditching Mutter and the Shell, does it have the chops to keep up? For Canonical, that seems to be the $20,000 question.
See the full story from Mr. Shuttleworth here: Mark Shuttleworth: Window indicators (markshuttleworth.com)