During the DKΣ3713 event, Square-Enix reconfirmed that Final Fantasy versus XIII is planned to remain a PlayStation 3 exclusive.
With Final Fantasy XIII going multiplatform in Europe and North America, many PS3 gamers were worried that Square Enix might pull the same move with Versus XIII. However, you can rest assured that as of now, Versus XIII is set on releasing as a worldwide PS3 exclusive.
http://www.psu.com/FF-Versus-XIII-confirmed-as-worldwide-PS3-exclusive-News--a4411-p0.php
I think this is great news but will it hold or will it turn out like the orignial Final fantasy 13.