Wirelessly posted (BlackBerry9000/4.6.0.167 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/102)
Unlike Verizon, AT&T doesn't lock the GPS - they just remove any free GPS software from the device before installing their own Telenav. No problems using Google Maps - but I sprang for the Garmin Mobile for my blackberry instead. Google Maps just doesn't replicate having a gps with turn by turn, spoken directions.