Of course, I don't think it has a whole lot of competition, but it's still nice to be up there so quickly. Now only France and Mexico remain to be conquered. They may be on the way, as I just checked France, and there was no price info at all. It said:
"Les informations sur les prix ne sont pas disponibles."
"Información de precios no disponible"
Addendum: I just checked and now it's #13 in free science fiction in the German Kindle store!