Downloaded and created the live CD of Open Solaris 2009.06. On a AMD Dual core desktop with 2GB RAM and nVidia graphics card, the live CD booted with no hassles at all. The time took for commandline boot prompt is about 70 seconds and the GUI screen prompted in about 130 seconds.
All this is done in the middle of other work, so didn’t get enough chance to install/explore this version of Open Solaris. May be during one of these weekends…