Anyone noticed you can now clear the furthest page read via the amazon website for any book you please? Not sure when that was added but
I wish they'd change it though or at least add the option to sync to last page read rather than furthest. Even if doing that wasn't automatic but needed a button pressing which would overwrite furthest read, or doing it only when you exit the app/lock the phone (assuming they want to avoid updates occurring too frequently.) since not all books are read sequentailly.
Anyhow, now others on your account can read a book after you and still use device syncing
obviously still can't both read at the same time unless one of you disables sync on their device (or the account)