Quote Originally Posted by Andrien View Post
At Sony Gamescom 2012 presentation they mentioned Cross-Buy. They want to try to implement it on many games that have cross-platform play with PS3. It is a feature of which if you buy one cross-platform game with PS3 or PS Vita versions then you only need to buy one copy of the game to play on both systems. They've already done this with one of Valve's game called Portal 2. Buy one copy and you'll be able to play it on Mac, PC and PS3 with your same account.

So its possible they might do it with SE. Would be cool
However SE already said you need to buy both versions and actually register the PS3 version key if you want the ability to play on PS3.

http://support.na.square-enix.com/fa...&c=0&sc=0&so=4

If you look at your SE account notice you will see FFXIV windows version registered. You can not log into the PS3 version with your account unless you have a PS3 code registered as well. Even if your friend has a PS3 and you want to log in on your Windows account not going to work without a PS3 version on your account.