OpenSolaris 2008.5 is available as an ISO download (and here as a torrent). It's shipping with the Gnome 2.20.2 desktop, so it will behave quite comfortably for those who are familiar with Ubuntu 7.10, openSUSE 10.3, and other recent distributions from the last six months. I've booted the live CD on europa, and so far everything Just Works.

When OpenSolaris first starts to boot you're presented with a nice Grub screen with three selections; select OpenSolaris (the default), memtest, and boot from the local hard drive. After selecting or waiting for the timeout for OpenSolaris, the next screen is a crude text-based menu to select your keyboard and language. And when I say crude I mean crude. It's defaulted to select English for the keyboard and the language, so a couple of returns (for me) and you're booting into Solaris proper. After the keyboard/language selection it takes a good 30 seconds on europa before the desktop finally appears.

Rest Here