This game hit WiiWare today, so I gave it a try. Pretty good so far. The main game itself is $8, and the extra side chapters are $3 a piece. (only one this month) Here's some release info for the rest of the game:
Rydias Tale "TheEidolons Shackled" 6/1/09
Yangs Tale "The Master of Fabul" 7/6/09
Paloms Tale "The Mages Voyage" 7/6/09
Edges Tale "The Pulse of Babil" 7/6/09
Poroms Tale "The Vanished Lunar Whale" 8/3/09
Edwards Tale "Star Crossed Damcyan" 8/3/09
The Lunarians Tale "The Blue Planet That Was" 8/3/09
The Crystals "The Planet Eater" 9/7/09
The final chapter (The Crystals) will be another $8. You will be able to transfer your character data from previous chapters to the final one, (I assume no character crosses over between side chapters) but I think you can skip any of the side chapters if you don't feel like pay the three bucks.
Playing the first main bit so far, got to the Mist Cave before getting screwed by back attacks. Probably will have to grind a bit. (haven't had to do any of that up until that point) Plays just about the same as FFIV did, except they added in team attacks and moon phases that make you plan out your rests before certain areas. Sound is so-so, pretty much just re-using the music from the original game. Some bits of the game don't even have any music, which was odd when I got to those parts. Apparently the first part takes about 5 hours to get through, so I should probably be able to finish it either tonight or tomorrow.