If the iPhone was said to be the pinnacle of human progress (truly, its not that wonderful and rather than argue with you; I will let Maddox do the talking for me) ; then the PN100 from iRiver tops that. The PN100 brings in a satnav and PMP rolled into one at an affordable price. At around 350 USD, the PN100 which is available only in Japan comes with a 2GB SD card loaded with Japanese maps and 512MB free to add images, music and video in a multitude of formats.

A 3.5 inch touchscreen helps you to get to where you want and the hot swappable SD memory card slot means you can always swap the maps for something more fun.

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