I picked up a bare one dirt cheap not long ago. Only thing is I can't quite figure out how to update it, etc. Datel's website doesn't seem to mention a model of this particular name anywhere. Neither for sale or in their support page.

The card looks like this.

Yeah I noticed it uses the same outer casing as Action Replay DS Media Edition, which their site does mention (except it isn't advertised to have DSi support).