wishlist: offline modus

[zion2k]

Hello,
first of all: I love your simple and clean map viewer.
Due to the poor mobile reception (here in Germany), I often have no data reception or only EDGE which is not really useable. It would be nice to have the option to save a area or use prepared area/images for these situations. Mordern mobile phones should have enough space to save a whole country without a problem.
Also nice would be an option that if I use a gpx file I could safe the area of the gpx file for offline usage. I nice feature if I would make a pre-planed a tour.