Creating location and mapping services isn’t exactly easy, and with Google Maps controlling a significant chunk of the market with an excellent, feature-packed product that’s difficult to compete with, it’s not even worth it to create them. But what if you could just buy services that someone else already created? It’s an important market, and if rumors that Nokia is looking to sell its Here mapping unit are true, companies like Amazon and Microsoft might be very interested, especially considering ow invested they already are in the service.