Very interesting. There are more videos/details of it here:

http://www.miniatur-wunderland.com/exhibit/video/section/air... and http://www.youtube.com/user/MiWuLaTV

Their YouTube channel has a lot of videos called "Gerrit's Diary" (the main guy building it), and he goes into some detail about the different parts as they are building it (it is in German, with English subtitles). I haven't found anything specifically about the programming, but I would love to know some more about what went into that.