The newest Kindle, 3rd gen Paperwhite, came out in June 2015. It makes some sense to release Kindles when they don't have to compete with Fires.
It will be interesting to see if there is any sort of app store or developer SDK along with this (to extend sharing options, etc.). It's one reason I prefer tablets, as I have option to save notes to Evernote, OneNote etc. and not just 'social' sharing.
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