Panasonic is using this year's SEMA show to launch the CN-GP50U, its first portable navigation device. The CN-GP50U features a 5-inch touch-screen display and comes with text-to-speech technology for reading out road names when under route guidance. A real-time traffic service from Clear Channel is available on the device with the purchase of a separate receiver. It also comes with built-in Bluetooth for hands-free calling and an industrial-strength in-car mount. Check out our first look.