Windows Phone 8 introduced the welcome ability to let GPS navigation apps continue to run in the background, but this does open up the issue of the same GPS navigation app draining your battery by constantly polling for your location, even when you are sitting in the office.
The latest update to Nokia Drive + Beta for Windows Phone 8 addresses this very issue, and quite intelligently.
The app will now turn off your GPS location polling when sent to the background, except when active navigation is going on, meaning unexpected battery drain will be avoided.
The full change log include:
The app, which is Nokia exclusive, can be found in the Nokia Collection.