Regarding the ISO in general:
Why are the keys beside the enter so thin? They haven't been in the past images or concepts, and aren't on the SP4 Type Cover.
Why are the media keys rewind and fast forward rather than skip backwards and skip forwards? It probably won't matter to a lot of people, but that doesn't make it less of an error. There is a difference between skipping and fast forwarding. See this: https://en.wikipedia.org/wiki/Media_controls
And has been pointed out a few times, the right alt key should read alt gr.
Why isn't there a box around the three lines on the menu key? On every other kb I've seen the lines have been in a box. This is really minor, but who says I can't nitpick?
Specific to the Nordic ISO:
If, as I am assuming, it is impossible to fit the "ø"s in with the same size as the rest of the letters, would it instead be possible to make all the letters smaller to keep them all the same size? It's really ugly with the small "ø"s as it is right now. I'll probably get used to it, but it is not a good first impression.