I'd like to see Christine adopt basic components from Open Street Map.
See:
http://wiki.openstreetmap.org/wiki/Api
http://wiki.openstreetmap.org/wiki/Tiles@home
http://wiki.openstreetmap.org/wiki/Depl ... Slippy_Map
http://josm.openstreetmap.de/
Particularly easy and valuable would be OSM tiles as a backdrop to Christine. Then one could start doing geographic work without hunting down lots of local data sets.