NavFunPro is the most universal Google-Maps tool that gives you all the goodies of Google Maps and Google Earth. You can connect your Bluetooth GPS or use the mobile's built in GPS. Then NavFunPro turns your mobile into an all-terrain navigation/gps tool. All your tracks are uploaded to internet. You can check them out at www.trackthisout.com/tm
Google Maps - I'm always lost when it comes to working a GPS guidance system, to those who just want a simple map system would be the best. An answer to my prayer cam when google finally released Google Maps and Local for the Blackberry.
It currently does not work for all blackberry models but only the lastest ones