Анонс: http://forums.virtualbox.org/viewtopic.php?f=15&t=18818&sid=2a9539dacd9047233ec154c774643a9f

Основные изменения:
Version 3.0 will be a major update. The following major new features were added:
— Guest SMP with up to 32 virtual CPUs (VT-x and AMD-V only)
— Windows guests: ability to use Direct3D 8/9 applications / games (experimental)
— Support for OpenGL 2.0 for Windows, Linux and Solaris guests

Скачать: http://download.virtualbox.org/virtualbox/3.0.0_BETA1/