From an Amazon.com Announcement:
These new features are available starting today on Kindle for iOS, and accessibility enhancements will be available on additional platforms in the future.
New accessibility features of the Kindle app enable blind and visually impaired customers to:
- Read aloud over 1.8 million titles available in the Kindle Store using Apple’s VoiceOver technology. Over 300,000 of these books are exclusive to the Kindle Store. Over 900,000 books are less than $4.99; over 1.5 million are less than $9.99.
- Seamlessly navigate within their library or within a book, with consistent title, menu and button names; navigate to a specific page within a book and sort books in the library by author or title.
- Read character-by-character, word-by-word, line-by-line, or continuously, as well as move forward or backward in the text.
- Search for a book within their library or search within their book and navigate to specific text.
- Add and delete notes, bookmarks, and highlights.
- Use customer-favorite features like X-Ray, End Actions and sharing on Facebook and Twitter.
- Look up words in the dictionary and Wikipedia.
- Customize the reading experience including changing the font, text size, background color, margin, and brightness.
- Use iOS accessibility features like Zoom, Assistive Touch, and Stereo to Mono, as well as peripheral braille displays.
Blind and visually impaired customers can also choose Kindle for PC with Accessibility Plugin, a free application for Windows PCs.