I'm looking for something like http://www.wayfaring.com/, but once you created the map, it will let you export it or download it to your phone.
The idea is that I can draw the path I should do, and then be able to see it in my phone. Better if the mobile app don't need 3G (so google maps won't do it).
What I'm doing now is using mapdroid for the maps (but you can't write anything inside the map), drawing them in google maps, and then trying to remember... I've lost my way some times :(