Do i have to be a PS+ subscriber to play destiny beta?
If it's anything like the Alpha, a PlayStation Plus membership is needed for cooperative or competitive encounters, but not for the story-based content which you can do solo.
You can play the story missions with friends without PS Plus from my experience (I don't have PS Plus), but I don't know about competitive. Probably can't do that, like Xaero said.
Ah cool, glad they changed it.
You're not missing out on anything by not doing the PvP. It's easily the worst part of Destiny so far, which really bums me out. D: