What is the new Application Switcher and where is it?

The Application Switcher is a list of running applications which can be displayed in a floating palette window. It is similar to the old application menu in the top right corner in Mac OS 8.x.

To open the Application Switcher, drag all the way to the bottom of the Application menu, then drag beyond the menu. When the outline of a window appears, release the mouse button. The Application Switcher is now running. You can click the program you want in the Application Switcher window to bring that application to the foreground.

You can also use the Application Switcher to open documents by dragging a document icon onto the icon of an application in the Application Switcher window.

Application Switcher supports AppleScript to configure its appearance.

The Application Switcher, can be anchored to a corner of your screen, show large or small icons, hide or show the application name, have a horizontal or vertical orientation, as well as other controls.

For a complete description of using the Application Switcher, see the Mac OS Help.