Anyway I'll try out Manitoba addresses on the x86 version. If it happens on both I'll report it upstream. If only on Maemo, I'll handle it. ;-)
One caveat is that all the tiger tarballs (*.gz files) have the map databases stored in sub-folders based on the state/province name. Roadmap needs this file in the roadmaps folder, not in a sub-folder, for it to access the files. A minor inconvenience to move them all the proper place.