The Sun-sponsored VirtualBox project has released a beta 3.0 version of its free, x86-oriented virtualization software. The Linux-compatible xVM VirtualBox 3.0 adds support for guest Symmetric Multiprocessing (SMP) with up to 32 virtual CPUs, as well as support for version 2.0 of the OpenGL graphics acceleration standard, among other features. Targeted at server, desktop, and embedded platforms based on x86, VirtualBox lets users run their favorite software, Sun says, while enabling developers convenience when building, testing, and running "cross-platform, multi-tier applications." It does this by enabling development and target systems to share a single physical host. Supported target "platforms" include Linux, OpenSolaris, Solaris, Windows, and Mac OS X.