Excuse me if I'm wrong, but from the way you come across you're no developer.
It's a beta, it will have problems. It's a closed beta for application developers to test on.
If you fudge your phone dicking around with betas not intended for you, tough luck.
3.0 will be talked about next week, but probably still won't actually be released. You'll just have to live with what you've got, or find out how (if it's possible) to downgrade back to v2.