New information has come to light that confirms that the Technical Preview will not be released to the public on the same day as the event in San Francisco



From Neowin:

At least that's the claim by Paul Thurrott on his Supersite for Windows, he has also managed to get some inside information on a few features not covered elsewhere yet. Thurrott has covered pretty much all Windows releases well before official unveilings and can be considered a reliable source.

Microsoft will be showing off Windows 9 on September 30th, just over a week from now on Tuesday to select partners, and it was rumored that the preview would be made available then or shortly after. Bearing in mind that September is a 30 day month, we're not too surprised that the build might not reach the public until October. Thurrott was unable to further elaborate on the source of the information but did confirm that he does not yet have a build installed himself.

  Windows 9 Technical Preview wont be made available until October