A new update to Google Maps is making its way to Android users. Those who reply of public transportation will now to able to get notifications regarding delays. The feature does not appear to be fully functional yet and there's no indication as to what public transit systems will be supported. The other feature included in the update is the ability for Google Maps to only use WiFi. With the feature enabled, Google Maps will not consume any mobile data and will rely on offline maps when you are not within range of a WiFi connection.