I was initially really excited as i thought this would open the way to off-road navigation using my garmin topographic maps. So i tested with the desktop linux version of navit first but the libgarmin claims to be unable to cope with the encrypted/locked german Topo-D maps. I'd really love to use my hirez n810 instead of the original lowrez garmin!!! Any chance of support for the locked maps? I do have a valid key for those and i'd really love to be able to use my n810 for geocaching ... MoG