Asus R600 personal navigation device

Asus has just released its R600 Auto Light Sensor personal navigation device that features automatic backlight optimization in order to give you the best viewing experience possible at all times thanks to the integrated auto light sensor. Other than giving you crystal clear directions, it also features entertainment functions such as MP3 and video playback in addition to photo viewing. The 4.3″ WQVGA display comes with a resolution of 480 x 272 pixels, making it easy on your eyes when reading the current map on display. The R600 comes with 128MB of internal memory, while an SD memory card slot (supports up to 4GB SD cards) lets you carry all the necessary maps, POIs, and entertainment media. How many of you actually use your GPS system as an in-car entertainment system, or do you have separate those functions to different devices?