Oracle is canceling Opensolaris project and focusing into Solaris 11. See below:

"All of Oracle’s efforts on binary distributions of Solaris technology
will be focused on Solaris 11. We will not release any other binary
distributions, such as nightly or bi-weekly builds of Solaris
binaries, or an OpenSolaris 2010.05 or later distribution. We will
determine a simple, cost-effective means of getting enterprise users
of prior OpenSolaris binary releases to migrate to S11 Express."

More information at http://mail.opensolaris.org/pipermail/opensolaris-discuss/2010-August/059310.html

-- Manuel Humberto Santander Peláez | http://twitter.com/manuelsantander | http://manuel.santander.name | msantand at isc dot sans dot org