I'm Finnish and I have order number 100000672 and my gut feeling says it has something to do with being 672nd buyer at least in Finland. If you add all the numbers I suppose the amount of devices sold are merely in the early thousands. Did they sell only to EU? If you look at Twitter there's a lot of interested people in for example India. Jolla talked about China a lot back then but we'll see what happens. Chinese people might like the idea of an OS that they see as somewhat Chinese, even if it might not be the case.