So the nice man at the Apple WDC declares the 3.0 will be available on the 17th Juneā¦.
What he failed to say is that it would be avaiable at 10 am on 17th June in the US PDT.
So that shifts the time to 6pm in the UK
And worse still 3 am on the 18th in Sidney, Australia
What Apple did on the QT was then to add differing dates to the relevant Apple pages for each country.
Unfortunately most people end up at Apple.com (US) long before they hit their own (for example Apple.com/UK)
There we have it: OS 3.0 is available on the 17th/18th!!