It turns out they're still very much around in the western Delta and even Upper Egypt, although they all speak Arabic now, as they had already begun to do in Ibn Khaldun's time; I met a Huwwari just the other day.
Yes thats true I wonder how much research is done in egypt we might be suprised what might come up. About Amazigh names (which i forgot) a known neighbourhood in Cairo is called after a Amazigh tribe because of its help. And not to forget the Nubian language..