The free successor to the OpenSolaris distribution have released OpenIndiana 151a, exactly one year after their first release. The new release is based on illumos and has the new KVM, several ZFS enhancements and support for new hardware.
It's sill considered a development release, I have however found it quite stable for my private storage node which has been running build of 151a for well over a month. A stable released based on 151a is expected later this year.
Talks I have given
2 weeks ago