As of this week, all Gamestop and EB Games stores should be recieving thier new Nintendo DS Download Station demo cards. The new downloads include a playable demo of Elite Beat Agents, which is due out Nov. 6th.
Unlike the E3 2006 demo, this only features half of the song "Walkie Talkie Man" as a playable song before returning you to the title screen. It's also on the easiest difficulty. But if you're looking for a peek at what direction Nintendo and iNiS are taking with the U.S. version of Ouendan, it does it's job pretty well.
When you bring your DS to a Download Station, how do you get to keep the demos you've downloaded? I tried it once and the next time I turned my DS on, the vol. 2 downloads were gone. I don't see the point of bringing your DS to a Download Station if the demos are only temporary.