Bungie betrayed no one. If you want to be angry, direct your fury to Activision, and Sony's really deep pockets.
The only thing Bungie needs to do is continue working on delivering us what we all hope to be a fantastic game.
Yes, I'm an XB guy. No, I'm not angry that PS players are getting the beta first. Why would I be? Why are you? We aren't entitled to anything more than anyone else. It was a business decision, and honestly, I think it was a good one.
PS3/4 are new territory for Bungie. Let them get any kinks out so that everyone has a good gaming experience. We all know all know what Bungie is capable of. Let them do their thing so they get it right.