Thanks for the response earthwings. I was wondering if full continent data be loaded through say http://wiki.openstreetmap.org/wiki/Planet.osm for offline use. Where does monav fetch the data from? I might do manual or wget based download to get the whole US routing data instead of selecting state by state --which 50 is a big number for a manual operation
wget http://edu.kde.org/marble/newstuff/maps-monav.xml -q -O - | grep payload | sed -e 's/<[^>]*>//g' -e 's/^ //'