Flash Cards Program on the DS?

I've scoured (sp?) the net with Google as my aid looking for a homebrew application of some sort of Kanji flash card program, where one could use the stylus to write the flash card and review written flash cards in a random order.

It wouldn't necessarily have to be Japanese or Kanji, just a card randomizer where it would show what one has written on the touch screen.

Unfortunately, all I've come up with are, of course, R4 flash cards and M3 and the like, because of the wording. And all of the Japanese Kanji/Kana are either too simplistic, or written incorrectly - grammatically and spelling-wise.

Does a program like this exist? It'd be more convenient instead of busting out all of my 1006 Elementary Kanji in written form.

Thanks.