It is called Evernote Peek, and it replaces the old flash cards using an iPad 2 and the new iPad Smart cover. Take a look at this video to see how it works. http://www.youtube.com/watch?v=vqVjruCt6yg&feature=player_embedded
You can even include pictures in the answer and score which one you got right or wrong to replay the wrong ones. This is the type of ingenuity I am expecting with iDevices and the learning/education market. We are starting to replace textbooks with eBooks, and we learn astronomy with Star Walker and now we replace old flash cards with Evernote Peek.
I love using technology to learn!