Although these are all 'old' series the amount of games are staggering and awesome... though Microsoft has been given the cold shoulder.

Valkyrie Profile - PSP and PS2
Dragon Quest - DS and Wii
Mana - DS and PS2
FF3 - DS
FF5 and FF6 - Gameboy
FF7 - Dirge on PS2 and Crisis for the PSP
FF12 - PS2
FF13 - on the PS3, also a side mobile game, and an action PS3 game kinda like Dirge of Cerberus
Crystal Chronicles - on DS and the Wii

INSANE