Sony has just unveiled its new GPS navigation device, the NV-U71T. This 3.5-inch tracking device offers a touch screen user interface, SiRF Star III GPS receiver, a 2GB of Flash memory pre-loaded with U.S and Canadian maps, up to 6.5 hours of usage with appox. 4.5 hours of charging time (or 2.5 hours in standby mode). If you use Firefox and love its gesture command, you’d be glad to find out that Sony also implemented this unique UI onto its navigation system.