Recently my attention got caught by illumian, a Debian-like distribution of illumos. Since I come from Debian world, having administered Debian based servers for over ten years now, this distribution that uses .deb package format caught my eye. While I slowly get used to IPS, I find it far less friendly than apt- and friends.
What is this illumian distribution? It's basically OpenIndiana with IPS exchanged in favor of .deb packages. ISO file that you can grab from there contains installation media for server solution, which means that if you want to get graphical environment working, you have to install X and GNOME packages yourself. In short it comes down to installing x11 and gnome packages and enabling gdm service via svcadm.
Have a nice testing. :)