My problem with MaemoMapper is that it is using graphical images of maps rather than vector data. This is about 10 times larger (or more) in file size. Since I drive most of California I would need about 10 gigabytes just to hold SOME of the levels of detail that I would truely want to have. That is where NaviCore or whatever it is called would probably shine. But, in the videos of this program, it's too dang slow to find any POI's. My older Pocket PC/GPS combo with Mapopolis (now out of the consumer level business) gave me tons of configurable options for road detail, zooming, POI's for a great price. It seems using the Nokia N810 and its mapping solution is a downgrade.