Nity
Enthusiast
Major Nelson has said on his twitter:
which one could imply the preview will be open to the public to registrants tomorrow (October 12).
The dashboard update today was preparing for the upcoming update, and for those accepted into the preview.
The registration page has changed so it now says "We're sorry, but at this time we are not currently accepting registrations for the public preview program stay tuned for future updates when the registration process begins." (Updated from what it said earlier today)
This page will link you to the likely registration page Connect.Microsoft
Fingers crossed.