i am looking into developing the n810 and Maemo Mapper as a field tool for a number of field staff. The MSVE hybrid data is very very useful to them and in our area, in our case, levels 2 to 4 are the most useful.

the problem is that the geographic area covered by the field staff are such that MSvirtual earth Hybrid tiles at levels 2 to 4 wont fit in the 2 gig limit. if i pre-download maps based on a box (XY upper left and XY lower right), at zoom 4, i end up with allot of unneeded tiles and no room for them to selectively download level 2 for their project sites.

what would be ideal would be if instead of using a box to pre-download if they could upload a GPX file, representing a simple polygon, and download all of the level 4 tiles that fall within that polygon.