Pear OS 7 is easy to use
And it comes with thousands of free applications. Pear OS 7 does everything you need it to. It'll work with your existing PC files, printers, cameras and MP3 players.
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Mission Control gives you a bird's-eye view of running apps :
(http://pearlinux.fr/wp-content/uploads/2011/05/missioncontrol.png)
Desktop Switcher : the lower part of the screen gives you a view of the virtual desktop :
(http://pearlinux.fr/wp-content/uploads/2011/05/desktopswitcher.png)
Notification Center : Display all your notification in one place
(http://pearlinux.fr/wp-content/uploads/2011/05/notification.png)
LaunchPad : Each app is represented by an icon, and Launchpad creates as many pages of app icons as you need. Swipe across your trackpad to move between pages. And open any app with a click.
(http://pearlinux.fr/wp-content/uploads/2011/05/launchpadbig.png)