Right from the lion's mouth, before the official announcement:
ftp://ftp.nluug.nl/pub/office/openoffice/contrib/rc/2.0.0rc1/
Also available at other OOo mirrors, search for it at the /contrib/rc/2.0.0rc1/ subfolder.
Windows, i386Linux and Solaris binaries available currently (as well as several localized builds).
Of course no official changelog yet.
ftp://ftp.nluug.nl/pub/office/openoffice/contrib/rc/2.0.0rc1/
Also available at other OOo mirrors, search for it at the /contrib/rc/2.0.0rc1/ subfolder.
Windows, i386Linux and Solaris binaries available currently (as well as several localized builds).
Of course no official changelog yet.