iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
Apple Launches New App Store Feature Section for Alternative Maps
A host of alternative apps ranging from free to Magellan's $49.99 "RoadMate USA" are available from such brands as Waze, Mapquest, Garmin, Bing, and MotionX.
Apple's embrace of alternative map options seems to be a sign that the company is taking criticism of its own offering seriously, although directing users to downloads through the App Store is still of benefit to Apple. Cook's letter did, however, also promote web-based alternatives such as Google's and Nokia's maps.