StudyBlue introduced a free app for creating and studying flashcards on iPhones and Android phones. Today, they've released an updated iPad app. The free StudyBlue iPad app is optimized for tablet display.
The StudyBlue iPad app
can be used to create flashcards in three ways. You can enter text,
take a picture, or speak into the app. The app can be used by students
to review their flashcards in a quiz style or by just flipping through
their flashcards. And students can use the app to search for public sets
of flashcards in the StudyBlue gallery. (From Free Technology for Teachers)