The latest VirtualBox 3.02 has just released.
I have installed on one of my Windows XP 64 Edition system and now OpenSolaris 2009.06 on the top of both.
Is that cool or what?
I am loving my OSOL runing smoothly on the VBox.
Download and try it yourself.
http://www.virtualbox.org/wiki/DownloadsSee the changelog for what has changed.