Kindle for iOS is great. I’m often reading books on my iPhone late at night, because it doesn’t require a separate light source, and it’s small and easy-to-carry.
The app has been updated with X-Ray. X-Ray, for those who don’t know, is a feature that lets you explore your books. It features information on characters, events and ideas from the story.
It’s powered by Wikipedia and Shelfari, which is Amazon’s community-based encyclopedia.