J-List offers the iTunes Japan prepaid cards, which are very popular with our customers as a way of plugging into Japan digitally. Looking for all the awesome music to the Railgun/Index anime series? It's available on iTunes Japan. How about the soundtrack to the new Evangelion 2.22 movie, or Hikaru Utada's eerily beautiful ending theme/remix? Got that too. Or see the full lineup of Miku Hatsue songs that are available. Of course the iTunes Japan cards also enable you to buy Japan-only applications for iPhone/iPad. Why not order a card or three now? (Note: these links are iTunes store links. If they don't come up for you, log out of your current account and try again.)
