Task switching in Ubuntu, and a introduction to ‘The Spread’

“A key part of any operating system user interface is how it
enables the user to switch between multiple tasks. In most desktop
operating systems tasks are encapsulated into windows, and the most
frequently used method of multi-tasking is window switching.
Desktop OSs have multiple methods of window switching (e.g Alt-tab,
clicking on indicators, notifications, etc?) however the most
common means of window switching is via using what is variously
termed a Launcher, Taskbar or Dock. Traditionally there has been a
1:1 correlation between each window and it?s representation in the
Taskbar.

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