They have a link to the video as well. On StorageMojo Robin saysIn fact, this week you'll see that Apple is announcing at their Worldwide Developer Conference that ZFS has become the file system in Mac OS 10.
I guess we'll know more next week.Jonathan is wrong, of course, but it was sweet of him to say it
Sources that have seen the latest candidate builds tell me that if ZFS is in there it is pretty well hidden. I'll stick to my prediction that Apple, as with HFS+, will put ZFS on OS X Server first before bringing it out later for the great unwashed.