During Christmas time i have experimented with the Waycheck script
see more at http://wiki.openstreetmap.org/wiki/Waycheck
created by Gary68 see more at http://wiki.openstreetmap.org/wiki/User:Gary68
and have found a lot of unconnected road ends and
roads crossing without bridge or tunnel tag.
Will keep fidling with the script until temperatures in Denmark
again allows mapping on bicycle.
Happy new year to everybody.