GPS Maps Free for BlackBerry is an application that brings Google Maps to your device so you can find and get anywhere.
GPS Maps Free offers a free alternative to BlackBerry Maps which, although not official, offers virtually the same service as Google Maps. Among other things, you can see traffic information, bike lanes, important places ... It even allows you to view related photos and use Street View.
However, one point to note is that GPS Maps Free does not allow you to create routes or save favorite places.