You may have heard staff from Grandia and Lunar plus a ton of manga artists are collaborating on a dungeon RPG called UnchainBlades ReXX. Publisher Furyu plan to release the game on PSP and Nintendo 3DS.
The official site was updated with a little tab that shows the difference between the two versions. On PSP you can toggle a map overlay to show up on the center of the screen or as a mini-map. The Nintendo 3DS version has the map on the bottom screen. Otherwise the two releases are the same.
UnchainBlades ReXX comes out on July 14 in Japan. So far, the dungeon crawler has not been announced for North America.