Final Fantasy Versus XIII

Anyone heard of that? I just stumbled upon that game... apparently, it's trailer was released in 2006 and the game hasn't been released yet. Some people labelled it, vaporware, I think that's when a game has been announced and then never released or something. Anyway, the storyline sounds very interesting, I'll get more information later, if I can, and it's supposed to be released for PS3 but I don't really know..I'm saving up, because I don't have a PS3. I'm going to buy one. XD