Cointainers are crap copied and crappied from Linux. SystemTap also seems to be better than dtrace. There's btrfs which isn't zfs copy, but it's a different file system.
If there was nothing interesting except ZFS, why would Linux kernel devs copy DTrace and Containers and probably lot of other things as well? Do you deny that Linux kernel developers are copying DTrace and Containers? In Solaris 10 there was lot of new hot tech; ZFS, DTrace, Containers being the hottest. Linux kernel developers are copying all of these. This shows they are interested.
He said this quite long ago and it was just stupid PR talk. It seems Solaris isn't so interesting for Oracle. Solaris seems to be nearly dead compared to Linux and basing on Oracle's interests.
Hardly. Larry Ellison, who founded Oracle, said that Solaris will be for high end. This means that Linux will be for the rest, middle end and low end. He also said that he loves Linux but it is not as mature as Solaris, hence, Linux is immature. Do you want to read the interview when he says so?