Everyone knows that Google prides itself on mapping accuracy. If you hadn't checked beyond the base maps in the past few years, though, you'd have thought the terrain was charted in the "here be dragons" era -- it's been as flat as a board. Take a second look today. Google has overhauled Google Maps worldwide to show hills, deserts and lush zones by default, as well as label the geographical features that hadn't previously been identifiable in a sea of white. The map overhaul isn't so nuanced enough as to remind us how steep the hills can be in San Francisco, but it will remind us that Gobi refers to more than just a chipset.