When testing SD for PC and iPad, I noticed, that on the Netherlands chart information concerning highways, it seams you have used very old or incorrect data. There are a lot of highways missing or only completed to the point of about 15 to 20 years ago!
Look for example at the missing part of the A27 from Huizen to Almere. Also the A50
from Nijmegen to Eindhoven is missing completely , as is the A73 from Boxmeer to Venlo!Otherwise SkyDemon is very impressive for planning and as a moving map on both PC and iPad.
Edit: Well, almost sure it is just very old data. A50 not finished yet from Arnhem to Apeldoorn, A30 Ede-Barneveld not finished, etc.
Final Edit: It seems this goes for Belgium and Luxembourg as well. Very old.