As far as I know Mappero can only use map tiles that are in Slippy Map tile format, in which Paikkatietoikkuna's map tiles are not in. So there's no easy way to use Paikkatietoikkuna as a map source for Mappero. But you can try http://talk.maemo.org/showpost.php?p...2&postcount=48 or http://talk.maemo.org/showpost.php?p=890055&postcount=6 to get topo maps to Mappero. Mapsi uses same WMS servers that Paikkatietoikkuna's web site uses and as Mapsi is a free non-commercial application I don't think it need any licenses.