After about 15 minutes of translation with Babelfish, I was able to set myself up an account on the ISize ECard site, a Japanese electronic card system. Just check out some of the awe-inspiring flash cards they have to offer, and you’ll see why the effort is worth it.
I can’t see any reason to use any American equivalent, since ICard even provides English translation for the recipient (that is, if you can make it through the interface which is entirely in japanese.. be careful! left button = submit, right button = clear!)
overstated 