Swipes brings faster app switching and multitasking to Android.  With Recent App Cards you can change between your recent apps with a single swipe from the edge of the screen faster than any other way.  The Favorites drawer let's you add your favorite apps, toggles, actions, widgets, and shortcuts to have access to then anywhere and anytime whole using your device.  When upgraded you can create as many Favorite Lists as you please and with up to 8 different swipes you have easy access to all of them.  With Quick Launch you can add your most used app to have it 1 swipe away at anytime.