Wow, I didn't realize that Navit was that usable. I've been a (relatively) happy Maemo Mapper user for years now, but I'll have to give Navit a look.

I deleted the Wayfinder stuff a long time ago because they stopped supporting it a long time ago. It is difficult if not impossible to update your maps. If you delete the map data from the Internal Memory Card, you can free up space for Easy Debian or cloning your OS or map data for some other program.