It should be available everywhere, and I just confirmed via iTunes connect that it is theoretically for sale in the Netherlands. I'm guessing that since it went

It should be available everywhere, and I just confirmed via iTunes connect that it is theoretically for sale in the Netherlands. I'm guessing that since it went live this morning it has not yet had a chance to appear on all of Apple's CDN. Hopefully it will be available to you soon! You might also try searching for it by name on the Dutch App Store.