Just an aside from looking at this list...
Is the PSV the system which has the most Final Fantasy content available on it?
Every mainline title from I to X-2 is playable on the Vita along with Final Fantasy Tactics, both Dissidia games, and World of Final Fantasy,
...why did I think 3 and 4 aren't available on PSN? Wonder how much I need to drop. I have 1, 2, 5, 7, 8 on PSN. Time to do math!