The ASP.NET MVC team released their Release Candidate product last Tuesday. The team is still tracking well to their 1.0 release later this month.
You can download the RC version from the ASP.NET MVC web site.
On a semi-related note, there is also a MEAP (Manning Early Access Program) update for the ASP.NET MVC in Action including a handful of new chapters. Currently the first 11 of 14 are available.