I just found the "addressdb" folder on the mapsforge ftp-server (//ftp://ftp.mapsforge.org/addressdb/europe/). There you can find files (i.e. country.sqlite) in SQL database format. Is it possible to use these files working in Locus together with the vector maps???
I opened such a file and it contains cities, boroughs, postcodes, roads, roads_postcodes, roads_boroughs. Every road is listed with lat/lon 8-)