We just released an alpha version of MediaCore 0.9 - at this point it is intended for developers only, but if anyone wants to take a sneak peak they are of course welcome to have a look.
Read more: http://getmediacore.com/blog/0-9alpha-initial-developer-release/
We've also had to push back the release date from early November to late November... but that's all detailed in the link above.