I was wondering whether D3 beta will be confidential or not. Since the plot will most likely be spoiled when you play the beta. Id imagine the D3 beta will be much smaller than the SC2 beta just because of spoiling the storyline.

I remember watching the SC2 beta the night it came out and staying up to like 6 am watching a stream of a guy playing it. I really hope I'll be able to watch the D3 beta as soon as it comes out assuming I don't get a beta key.

Who thinks whether or not there will be any legal problems streaming the beta?

I don't believe we're planning to impose NDA's on future beta tests for any of our franchises. That's of course subject to change.