I have a couple of simple questions about playing this game on multiple platforms and the subscription service.

1) If I buy this game on PC and PS3 (with the intention of migrating that PS3 version to a PS4 version eventually) do I have to pay one monthly subscription or two in order to be able to play on PC and PS4?

2) I already have this Square enix account. I have never played the retail version before on it. I have played the PS4 beta on it. When I buy a new copy or FFXIV will I be able to activate the free 30 days that you get with new copies?

3) Can a character created on the PS4 retail version also be played on the PC version (and visa versa) or are they locked to a particular platform?