Pinch to Get an Overview of All Your Android Home Screens
When you’re on the home screen and you want to head to a screen that’s more than one swipe away, it’s probably faster to get an overview of all your screens and tap on the one you want. To do this, just pinch in on the home screen
and Android will spread out all your home screens for you.
Works on my Samsung Galaxy S with “Gingerbread” Android.