amAze GPS is a new freeware application for Java based mobile devices like Motorola, Nokia and Sony Ericsson that offers complete visual and voice based GPS navigation for United States and some 15 odd European countries.
amAze allows you to calculate the route of a journey to any address or point of interest. A Bluetooth connection with a GPS receiver will indicate your location along the route with voice and visual guidance to your destination in the shortest possible way.

Here are the complete features of this software:

-Visual and voice guidance to any destination
-Search or define any location by its address
-Search and navigate to businesses listed in yellow pages directories
-Present any required location on the map
-View and use dynamic high quality maps at various scales
-View aerial photos and satellite images
-View topographic maps
-View real-time traffic conditions on the map
-Calculate the fastest way between two locations
-Save and manage personal favorites list

Download Beta version from here