With a 4.3-inch screen and 30GB and 40GB hard drives, GPS data and POI’s are overlaid over the satellite images from TeleAtlas, and displayed in real time as your moving.  The only difference we can find between the GO1 and the GO2 appears to be the 10GB increase in hard drive size, and Bluetooth 2.0 capabilities.

These units will need to have some powerful processors to load all that satellite data and scroll the map view. Either that, or performance will be crap. Hard to say, since these units are only available in Spain. Suggested retail price is 499 Euros ($705). That kind of money puts the GO in serious competition. I doubt we'll ever see these units in the US, but you can check out more details of the GO1 and GO2 on Bluesens' product pages.