The big problem with the introduction of the KF8 format is that
Amazon is doing a pretty hack job with this, I am very sorry to
say, because, according to Amazon’s announcement and FAQ, none
of the older Kindles will be able to support this format.
Why is this a problem? Well, as a professional eBook formatter,
the question for me is, how am I supposed to deal with this?
Instead of creating the foundation for one rock solid Kindle
platform that has powerful capabilities, Amazon is now going down
the road of platform fragmentation.
Amazon promises that their tools will convert KF8 files to alternate formats compatible with older Kindles, but as Henkel notes:
Just because KindleGen 2 promises to convert your books, doesn’t
mean you should, because the output quality will be dubious at
best. Of course, if you are part of the
I-don’t-care-just-make-it-easy, Smashwords-adoring crowd, yes,
that might work for you, but if you take pride in your ebook’s
layout and formatting, this is not going to fly.