Folgende Antwort habe ich gerade von Johann Gronenwald bekommen:
Hi Emanuel,
Legally speaking we do hold copyright on the maps and the use thereof, but I am happy for people to use the maps for personal use and where T4A is acknowledged as the source. If it is used for commercial means then it is a different issue altogether.
Thank you for letting me know.
Kind regards
Johann
Das deckt sich mit dem was Chrigu geschrieben hat.
Gruss
Emanuel