Google Maps is pretty great. So is Foursquare and Yelp and Instagram. Now imagine combining the best of all those and what you get is Citymaps. It's a brand new type of map for iOS that lets you explore what's around you and share it with friends.
Who cares about street names and numbers when you can have a whole city map made out with the brands of shops and chains everywhere? I will meet you at Louis Vuitton and Bvlgari in ten! See you there! [Citymaps]