I thought it would release at July, according to my info, but it seem the rumor was false. So the Game of FMA psp was out at the sametime the last Chapter of it, I never thought that this day can be so big.
The game follow the story of the FMA Brotherhood, but the battle system is different, its more teamwork Battle like Naruto shippuden, were you attack together with your partner, It can have 2 vs 2 Battle in the psp, and you can pick most of the character of FMA Brotherhood.
Its just release in Europe but I do not know about other countries, well that's all for now.
Here a Trailer of the Game.