Again, these features are on the website, on the screen that you see either way after you made your purchase, NOT on any devices. All they did was add two additional buttons, one of which is allowing you to send the same book to a second device (so they are not advertising anything at all), and the second button is what you see if you hit the back button in your bowser, which is what I always had to do when adding the audiobook to my purchase.
I am a bit amazed about such harsh reactions, since amazon.com has a gazillion buy buttons all over the site already.
*scratches head*
Apparently, I am the only one who sees a benefit in this upgrade to their site.