Black Sigil: Blade of the Exiled
Apparently this one was intended for the Game Boy Advance and just got kinda... delayed. As for the studio themselves, they have a website, but it's barebones and hasn't posted an update since 2006, at which point they thought the game would be done by early 2007. They also have forums, which mention a release date of March 2008. And then of March 2009. And the Gamespot preview says April.
Well, that does happen in RPG production sometimes, especially when you're an indie studio trying to make an epic-length game, and in that case I suppose we should be fairly impressed it was ever finished, playable, and Nintendo-approved at all! Sadly, with the enormous glut of RPGs coming out on the DS, I doubt this one will move me to pick it up.
Publisher Preview Site (with lots more pictures and information than the studio one)