If the next question out of your mouth is "So What?" let me remind you, dear readers, the top screen of the game is the only one enabled with 3D viewing capability. The newest trailer features a good deal of gameplay, all of which is taking place on the bottom screen. The top appears to be what looks like a map at some points, and a timeline at others.
What's the point of making a 3DS port, that doesn't play in 3D, of a game that already has a DS version? Unless there's some super-secret information we won't see until the release date later this month, I don't see one. Regardless, the trailer is after the cut for your viewing pleasure.
http://www.youtube.com/embed/Xw1IRL98CPU?rel=0