Be aware they held a "contest" in 2004 to design a DS accessory. Guess what I sent in? Why it was a DS loading card that allowed media and software to run off of a media card that fit into the GBA slot.
Yeah, I didn't win anything.
I imagine this is just a scheme to fish for homebrew to include on the "Max Media Dock" along with the Moonshell software that comes with it... oh, and they didn't write that software either.