No, I haven't said you can buy just 1. I think they don't even have the devices ready and they are waiting for a order of 1000 of more to start producing the devices... There should be some online shops, that usually sell Onyx products that should be already ordering it! For example:
http://ereader-store.de/en/
But no idea of when will it be avaliable for end consumer just to buy 1 of them!