For the iPhone, iPod Touch, iPad, Android, interesting platform choice there. No titles yet, just the tagline 心が世界を壊す (kokoro ga sekai wo kowasu), something like "Hearts that Rend the World Apart," well if you read the EN page for it that is. Then some French that means "This world is an illusion. The dreams (of night) are real."
In the view page source there's a further subtitle that says "Shid and Shiera's new story, along with the genre as "adventure game book." English source doesn't really reveal anything more than the Japanese source, feels like a machine translation more or less.
So the last time I saw the names Cid and Shera they were in Final Fantasy VII building rockets. Sure as hell don't look like the two characters there...also it should be noted that in FFVII(J) Shera's name was シエラ as opposed to シエラ─. Still that girl is holding a moogle AND the tagline is "new story," implying there was an old story to begin with.
Who knows.