Actually, I ordered my EZflash 3in1 less than a week ago (thursday, i think), and it arrived today; i was quite surprised with the processing speed! Maybe it's because I'm in western Europe and they're shipping from Hong Kong?
@Xdqwerty, Osu! Tatakae! Ouendan! is the Japanese version of the game, different settings/characters/songs but otherwise identical mechanics. I played that before I knew about Elite Beat Agents lol. Both fantastic games https://en.wikipedia.org/wiki/Osu!_Tatakae!_Ouendan