Strangely enough, I actually got Trine for the USD price, even though lately I've been starting to see a lot of the dreaded Euro pricing on Impulse as well. Perhaps they recently discovered Norway is not a EU member and changed it for us?
Not that I really care about the currency, but I do care about the 1:1 USD-EUR conversion ratio that has become the trend among game publishers.
As for taking it up with the publisher, I don't see why we shouldn't let Stardock know. I'm guessing they have a lot better communication lines to the publishers, and if Stardock says "this is costing a lot of sales you know", that might have more sway than the few mails from people taking the trouble to dig up the publisher's contact information. Where it would likely just end up ignored by first line support anyways.