As part of a larger Maps update for desktop, which finally brings multiple destinations to navigation guidance, Google is rolling out Maps 7.3 for Android.
The crux of the update, as far as we can see, is the expansion of information in notifications on devices running Android 4.1 and above. In addition to instructions on where to turn next, Maps 7.3 now displays estimated arrival time and distance remaining.
All users will also benefit from minor design changes throughout the app, from more compact cards to smoother scrolling.
read more via http://mobilesyrup.com/2013/10/10/google-maps-for-android-gains-more-detailed-notifications-design-improvements/