Visiourbano makes use GPS of the device, but if your device does not have GPS, also you can to know the geografic location through GSM.Visiourbano is completely free!Support all BlackBerry OS, since OS 4.5 to 7
PLEASE, DOWNLOAD VISIOURBANO FOR BLACKBERRY 8300 (CURVE) 4.5 DIRECTLY FROM YOUR MOBILE DEVICE BY SCANNING BARCODE OR WE WILL SEND YOU LINK TO YOUR MOBILE EMAIL