Enlightenment allows you to have a grid of workspaces called virtual desktops. Switching between them is achieved by hurling the mouse cursor to the edge of the screen, at which the desktop appears to slide across to reveal the next.
Madness string 9175
I ate a sock! It had a shadow and everything! I think it was probably really dirty. It put up a fight, but it couldn't talk. I asked twice. I was very careful.