I call it "telefonino", Cell-phone in Italian.
And in fact in general i do not believe in the future of a a "text only" reader.
I can't imagine future reader who cannot access the web, and if i can access web, i want to do it with an unique device with which i can read text, listen music, watch video, call friend...
And if the French "liseuse" have a nice sound, it smell a little: "I CANT call it READER it's an English term and I speak FRENCH" symptom of an old French illness which have give us "mèl" for not using "mail"
