They have already discontinued purchase and WiFi download for the Kindle 3 / Keyboard (azw3 mobi & PDF) and DXG (Mobi & PDF). The Paperwhite 3 no longer is any use for KFX backups.
So I've deleted all my ebook "wishlists" on Amazon, which had been already whittled down to a few authors exclusive on Amazon. Exclusive creative content to purchase at retail is immoral.
I won't suffer as there are thousands of PD and commercial ebooks elsewhere. It's a shame for the authors and small publishers "conned" into giving Amazon exclusivity. We now have about 10 nearly useless Kindles in the wider family as many have also Kobos ort phones / tablets far better for metadata / PD / DRM free content.
https://en.wikipedia.org/wiki/List_o...ions_by_Amazon
[This list is incomplete; you can help by adding missing items. (February 2014)]
Most recent is takeover of satellite provider for Apple iPhone.
They've wrecked Goodreads and IMDB.