How do you get a book at Project Gutenberg into your iPad Kindle app?
Go to Gutenberg on your iPad and download the “Kindle” .mobi file. It’ll automatically open in the Kindle app. Yay.
Don’t worry about instructions for how to get a .mobi file to your iPad Kindle. It’s a bit of a chore. But as long as you have a URL for the .mobi file, just use the Safari browser to download it directly. One you open it, it will be in your Kindle bookshelf until you delete it.
Works like a charm.