Google has replaced the tiny Maps arrow on Android with something that can better represent the way you're facing. When you fire up the updated app, you'll now see a blue beam that shines towards your destination like a flashlight. This directional beam can also indicate whether your phone's compass is malfunctioning and directions aren't as accurate as they should be. All you have to keep in mind is that the narrower the beam, the more accurate it is. If you see it widen up, then your phone is having issues.