Flashcardlet is a free, easy-to-use studying application with material for kids.

Features:

-Simplicity is the ultimate sophistication. This app is easier to use and more refined than any other flashcard app.
-Flip through cards with natural-feeling gestures that move as fast or slow as you would like.
-Cards are pleasing to the eye and look better than handwritten flashcards do.
-Study even more efficiently by discarding cards you have mastered or bookmarking troublesome ones.
-Study your cards in the order that helps you learn best - random, alphabetical, or an order that you specify.

Screenshots: