To answer people's questions:
There's no trains in Iceland at all, so the alternative used is vans, but as it's quite a small country not that many get done.
Greenland is the one with the extreme weather conditions but it can get really cold in Iceland...I think when it gets too cold people just don't bother painting.
It's light for most of the summer, but only light 24 hours a day for like a week. In the winter you might get a couple of hours of light in the darkest months.
And Roadpig, I have switched emails recently so that might be why you didn't get a reply...but there was a bit of new tmc stuff going on in Iceland this summer, but that was mostly Nores as the others have wither given up or aren't very active at the moment...the nores, tiper and hero stuff above is all tmc.
I'll post some more stuff when I get a chance.