Google just released a free iPhone/iPod Touch version of its popular Google Earth desktop mapping application. The application allows users to fly around the globe with just the swipe of a finger; tilting the unit adjusts your view, zoom in or out by simply pinching your fingers. The new app also integrates geo-located Wikipedia articles – fly to the pyramids, and read all about them, all while riding the bus to work. Check out the video above for a look at the functionality.