"I prefer Linux in almost every way to Mac OS X, but I have to admit a little envy over OS X's Exposé feature, which quickly tiles all open windows. Luckily for Linux users, Komposé brings the same convenience to the Linux desktop.
"Komposé is a task manager for KDE that generates thumbnails of your windows grouped by your current workspace or all workspaces. The old-school way to manage windows is to use a taskbar or to move through your windows by using Alt-Tab and Alt-Shift-Tab. I usually have 10 to 20 windows open on each virtual desktop, however, so this can get tedious pretty fast..."
