Back on the app's main screen, that upper right-hand button lets you create "collections" of your favorite maps--essentially bookmarks and folders of locations where you want to get around. You can also choose to save a map of a neighborhood for offline viewing; using my home's Wi-Fi, it took about a half-minute to download the map. You can only save one map at a time using this feature, so you'll want to choose wisely.
Also on the main screen, a button on the lower right-hand side offers a choice of Satellite View, Live Traffic View, and a Public Transport View--the last of these options showing routes and stops for the buses, trolleys, trains and subways in the area. What wasn't available--at least in Philadelphia, where I tested the app--is the promised "Community View," made of up maps "created and updated by users all over the world"--a feature that may flesh out once the app has been available to users more than a day.
Here Maps app also lacks a way of showing you landmarks in the neighborhood you're trying to navigate. Google Maps, of course, offers the ground-level "street view" pictures of your destination, and Apple's new native Maps app tries to solve the problem with its sometimes-cool, sometimes-perplexing "flyover" feature. It may be that the "Community View" eventually solves this problem, but it's not fully available to users yet.
Users can share maps and routes via Twitter, Facebook, email, or text--as well as several social services more known and used in Europe.
Here Maps is free, and compatible with devices running iOS 4.3 or later. It is optimized for use with the iPhone 5.