Its amazing how many people are allergic to reading, particularly the ones that heard about this through a certain gadget blog. "Where does this work?" For now, a handful of cities. Probably not yours. "How do I connect it to my BMW?" Read the instructions. If you dont have ConnectedDrive Services, its not going to work. "It wants access to my location even when its not running!" Uh, yeah, because "running" means its being actively displayed on your screen. Some folks want to use another app while this is in the background. If you want to terminate the app, just swipe it away... assuming you dont know how to do that, double-click your home button. Frankly, its not vey useful at the moment, because most cities arent sharing the signal data yet. But it works in a city I drive through occasionally and it does what it says it does, so Im not going to hold that against the app.