VirtualBox 3.0 has been released by Sun. This major update introduces Symmetrical Multiprocessing (SMP) in virtual machines as well improved 3D support.

VirtualBox is an x86 virtualization solution, developed by Sun Microsystems (it was originally created by German software company Innotek). When it is installed on an existing host operating system (known as the host) additional guest operating systems can be loaded and run, each with its own virtual environment.

VirtualBox the only professional x86 virtualization solution that is freely available as Open Source Software under the terms of the GNU General Public License (GPL).

VirtualBox runs on Windows, Linux, Macintosh and OpenSolaris hosts and supports a large number of guest operating systems including but not limited to Windows (NT 4.0, 2000, XP, Server 2003, Vista, Windows 7), DOS/Windows 3.x, Linux (2.4 and 2.6), Solaris and OpenSolaris, and OpenBSD.