Amazon forgot to tell us today that you can now send a doc direct to the iOS apps and Amazon will convert it for you. While this detail was mentioned in iTunes, I didn't mention it before because there is no email address listed on the "manage your Kindle" page on Amazon. But each app does have one; you'll have to first sync your app and then look inside the setting menu (bottom right corner of the home screen). It will be listed, and like the other emails on your account
This might look like a small thing, but Amazon has effectively turned my iPad into a Kindle. They've removed the line between app and hardware, and that is going to make the app worth much more.
Now, a lot of people were reporting the update this morning as turning the iPad into a Kindle Fire. That's not quite true. You see, the iPad app is better than the Kindle Fire because the app will now back up the annotations on my personal docs. The Kindle Fire cannot do that; until today only the Kindles had that feature, not the Kindle Fire.
So now the iPad is actually better than the Kindle Fire in at least one way (several, actually).