Great, impressive, excellent application!!

I think it would be a good idea (and maybe not so much work) to add WMS support and multiple map provider functionality.

One could configure Google-like and WMS standard-compliant map providers (there is plenty of free ones).

the
$HOME/apps/maemo-mapper/[ZOOM]/[LATITUDE]/[LONGITUDE].jpg
could be changed to
$HOME/apps/maemo-mapper/[MAP_PROVIDER]/[ZOOM]/[LATITUDE]/[LONGITUDE].jpg

This could be useful if one wants to see satellite imagery like
http://onearth.jpl.nasa.gov/

WMS:
http://wms.jpl.nasa.gov/wms.cgi


Did I mentioned I liked it?

Great work!!