I didn't know about this controversy and checked Wikipedia[0]. Funny thing is, the first information is what it is called in German ("Prioritätsstreit"), indicating it's somewhat relevant in Germany and yet there is no German Wikipedia article about it.
There is a small segment in the german article about Leibniz[1] and even less in the German article about Newton[2].
"Prioritätsstreit" is just a german word for a priority dispute, i.e. the question who was the first to come up with calculus, not something to indicate that this would be a priority to the German volk. If my memory serves me right, Leibniz didn't much mind about the whole business.