I use the Amazon Kindle app on my iPad all the time, and it has just been updated to version 3.5.
The Kindle app is optimized for the iPad, iPhone, and iPod touch, giving users the ability to read Kindle books, newspapers, magazines and PDFs on a beautiful, easy-to-use interface.
You’ll have access to over 900,000 books in the Kindle Store. Amazon Whispersync automatically syncs your last page read, bookmarks, notes, and highlights across devices (including Kindle), so you can pick up your book where you left off on another device.
Get the best reading experience available on your iPad, iPhone, and iPod touch:
• Shop the Kindle Store by visiting Amazon for the largest selection of books people want to read: over a 900,000* books.
• *New*: Email PDFs & other documents to your new Send-to-Kindle e-mail address and we deliver them to your device. The documents are automatically archived in the Amazon Cloud and available for re-download on your iOS or supported Kindle devices. You can also read PDFs from Mail, Safari, or by transferring them from iTunes.
• Get free book samples – read the first chapter free before you decide to buy.
• Customize your reading experience by choosing the background color, font size, and either portrait or landscape format.
• Instant dictionary word lookup. Tap and hold a word to view the definition. Use the Google and Wikipedia links to get more information.
• Search inside the book to find a character, topic, or section you want to revisit.
• Simply tap on either side of the screen or flick to turn pages.
• You can also read your Kindle books on your Kindle, Kindle Fire, Kindle Touch, PC, Mac, Android-based device, and Windows Phone 7-based device. Our Whispersync technology syncs your last page read, notes, bookmarks, and highlights across devices, so you can pick up where you left off.
What’s New in Version 3.5
• X-Ray for Books – see the “bones of the book”. X-ray helps you learn more about notable characters, places, and phrases with descriptions from Shelfari.com and Wikipedia.
• Manga Image Rendering Improvements