According to Bashiok, September 7th -- around 1am EST, Diablo III Family And Friends Internal Beta Testing has officially begun. Closed Beta will start very soon -- which might mean any time within the next few days up to next two weeks considering Q3 ends September 30th.
Bashiok informs this Friends and Family testing has NO NDA which means all the leaks are official Non-NDA and encouraged public videos.
Bashiok: FYI, we’re getting very close to starting the closed public beta test for Diablo III. You might start seeing some new reports about the beta client as we’ve begun limited external testing with employees and their families, and there is no non-disclosure agreement (NDA) for that. We look forward to sharing more info about the beta test in the near future. Stay tuned.
If you have a beta license, you are free to show, share, or talk about any portion of the beta content to which you have access, as this beta test is not confidential. -- source