It always took and pushed the system's limit.
Thats actually mostly what I was trying to say, took the words right out of my mouth. All FFs have always been the cutting edge in terms of the systems available.

Will FFXIV initially launch on the PSP? I doubt it
Will Spinoffs or other FF titles hit the PSP in the future though? For sure

Initial launches of the numbered series need to stick to the major platforms if it wants to keep pushing the envelope and stay competitive