Just wanted to give you guys a heads up that want to know about this game on the PSP. I bought it and I'm about an hour into the game. The battle system is sort of like FF12 but you only control the main character Zack. Materia is still in the game. You don't get a certain ammount of slots on armor/weapons, instead you just have 4 materia slots. The battle system is sort of weird, you can have up to 6 commands.
Attack / Materia #1 / Materia #2 / Materia #3 / Materia #4 / Items
You use L + R to cycle through the commands in battle. It sounded kinda difficult when I first saw it on the game, but it's really not that hard to get the hang of.
If the materia is able to be used during battle (I.e. Command / Magic) it will show up in battle but if it's passive (i.e. HP+10% / Vit+10%) it won't show it in battle making your choice of commands smaller and easier.
I don't know a whole lot about the game because I'm not very far into it but I'll keep you guys posted in certain things. So far it's not too bad IMO