Latest Generation of 'Indoor GPS' Apps Provide Search, Turn-by-Turn Navigation

Google pioneered indoor location service by building it into its Android operating system Maps app, but other developers are taking this technology several steps further, and introducing it into iPhone apps. The latest generation of "Indoor GPS" apps (which usually don't use GPS at all), can provide you with turn-by-turn directions to the interior location you seek, feed you real-time offers and promotions depending on where you are, and help you find a friend. Macy's massive Herald Square store in New York has just released such an app, but there are many more examples, ranging from museums and airports, to hospitals and sports arenas. Read on for more about indoor GPS - how it works, and what it means to you. Image © Meridian