I don't know if Amazon really cares about circumventing geo-restrictions. I know that I once had a problem with buying a books at Books on Board (which wasn't geo-restricted) and when I emailed about it they advised me to try and buy the book using a gift card because it can't check your country that way. This also worked with geo-restricted books.
Personally I doubt Amazon will open their Dutch store this year. They've pretty much missed the gift giving season, a lot of people spend more money buying gifts for Sinterklaas, on Wednesday, than for Christmas in the Netherlands.