From Fudzilla
http://www.fudzilla.com/index.php?op...=501&Itemid=40
http://www.fudzilla.com/index.php?op...=550&Itemid=40
Updated with the new "beta 158.16" drivers.
Also news on the 8800 Ultra
http://www.fudzilla.com/index.php?op...=539&Itemid=34
This is only one source so wait till its confirmed by other sites