Amazon posted a major update for its iOS Kindle client this afternoon, bringing the app to version 4.1. The update includes a number of new features, like Flashcards for students, and several improvements for things like search, X-Ray and Dictionary.
Perhaps one of the biggest changes in 4.1 is the new Flashcards feature. It's only available for print replica textbooks, but students can use the feature to convert important terms from X-Ray, or their own notes, into flashcard sets for studying...