Like the rest of the Crystal Chronicles series, the gameplay of Echoes will heavily rely on action-RPG aspects and puzzles, rather than the traditional turn-based combat of the main Final Fantasy series. Echoes will be available on both the Wii and the Nintendo DS, and the game will take advantage of the two systems' interconnectivity to allow online multiplayer. Additionally, Nintendo seems to have realized that we're tired of letting those dozens of Miis we made on launch day languish without a purpose in life; players of the Wii version will be able to import their favorite Miis into the game.
Source: GameSpot
I've never been a fan of the Crystal Chronicles series, but even I'm tempted by this. The short blurb about the story in the above link sounds like it could be interesting... as long as we don't find out that the heroine is sick because she ate dragon grass not once, but twice. Stupid princesses who eat dragon grass two--count 'em, TWO--times deserve what they get. Really, the Crystal Chronicles line always seemed to me like a kiddie version of the (occasionally) more mature main series storylines. These saccharine tales of precocious fourteen-year-olds aren't quite as cute now that I'm not fourteen, yanno?