Well, it's been posted in the beta forums and Hvinire (SE Community rep) even posted about the key give away. If there was any false information there, he would have made it perfectly clear.
http://forum.square-enix.com/ARR-Test/threads/60896-Free-PS3-Beta-Keys-on-GamesRadar.com!?p=819609&viewfull=1#post819609