Working with multiple monitors is proven to increase productivity. Use multiple monitors to work with your emial, internt, powerpoint, word or any other applicatin simultaneously! Tasks such as cutting and pasting between different documents and applications becomes as easy as dragging and dropping.
Clone mode allows you to display the same content on separate screens.
Extended mode lets you display different winodws on separate screens. Imagine the convienience of cutting and pasting from excel on screen screen to powerpoint on another.