I know of several GPS apps used for turn-by-turn navigation, but I'm looking for something on a bigger scale... Going on holiday soon, and would like to open up a GPS app on my iPhone and by using the GPS see how far around the globe I am (and therefore a quick estimate of how much time is left of the flight). Obviously as there'll be no reception over a big stretch of ocean (and "flight mode must be enabled" safety regs etc), I'd need an app that has a full map of the world. Obviously no details of roads etc would be needed so it shouldn't be a pretty big app either. Does anyone know of a good one? Price not really a problem, but the cheaper the better!