Add me the chorus of "why?" and "please don't" voices. The only situation in which I can see a use for it is immersive reading, but my understanding is that even Kindle doesn't support that on its e-ink audiobook-capable readers. Which makes the whole thing moot/pointless in my opinion. I'd rather have audiobook functionality on the dsesktop apps, so that I can listen along to the Italian books I have while I try to read them. On my e-ink reader.