Sony introduces in Japan its new nav-u NV-U3C GPS navigation device. The NV-U3C has a 4.3-inch 320×240 LCD display, 4GB of internal memory and built-in 1W speaker. To be installed in cars, the nav-u NV-U3C supports PetaMap data for information about restaurants and stores. The GPS device will be released in 21 April. It comes in White, Pink and Grey.