Although there's no official word on when Gnome 3 will become the default desktop environment in Ubuntu, Mark Shuttleworth suggested last summer that the October 2010 release, or Ubuntu 10.10, would be a likely target.
Given my experience with the new Gnome, I'm not convinced that's a good idea, unless a lot changes on Gnome's end between now and the fall. But I'll save my criticism for another post. Below, I'll focus on what Gnome 2.30/3 actually does, and how it's so different from its predecessors.
Gnome 3 will take a radically new approach to the desktop in two respects: in the way windows are managed, and in how applications and user data are organized.
Gnome ShellOn the window-management front, Gnome 3 employs Gnome Shell, which redefines the way users interact with their windows. Gnome Shell encourages heavy deployment of virtual desktops, and essentially does away with the taskbar-based approach to moving windows in and out of focus.
Gnome 3's default desktop looks like this:
By clicking the "Activities" button in the upper-left corner (or pressing Alt-F1, or moving the mouse cursor into the upper-left corner), the user is presented with a side panel from which she can manage windows, create new desktops and launch files or applications:
Of course, words and screenshots can only say so much. To get a better idea of how Gnome Shell handles window management, check out the screencast we made last fall, or the numerous similar videos around the Internet.
ZeitgeistGnome 3's second major innovation centers on making folders and directories a thing of the past. Rather than forcing users to open a file browser in order to access their data, or navigate through a hierarchy of menus to launch an application, Gnome 3's Activities panel features a search box where users type what they're looking for and are presented with corresponding launchers:
In my experience, this feature, called which is based on Zeitgeist, works surprisingly well compared to other real-time data indexers available on Linux--namely the disaster known as Tracker.
The search feature wasn't perfect--in particular, it seemed not to index new files very quickly--but if it can be made 100% reliable, it would be a great alternative to the traditional directory hierarchies on which operating systems have relied for four decades--and which remain deeply inadequate for the needs of most users, judging by the cluttered desktops and misplaced files that most computers users struggle with constantly.
Will it Work?In a nutshell, Gnome 3 is what you see above. It represents huge changes to the way most people interact with their computers, and it's fair to expect its integration into Ubuntu to be accompanied by a bit of controversy, to say the least.
After using Gnome 3 for a few days, I have a lot of personal--and critical--thoughts regarding its viability as a desktop solution, at least for people like me. Stay tuned for those.