The second alpha for Mandriva Linux 2009 is now available. There is information about the new release in various places:
Mandriva Linux 2009 release notes: these will be updated to reflect the status of the current pre-release.
Mandriva Linux 2009 Errata: these will be updated to reflect the status of the current pre-release.
A guide to some major new features of Mandriva Linux 2009
The release schedule and technical specifications for Mandriva Linux 2009: all of these may not be implemented.