The Sun VirtualBox* version 3.1.0 is now available with experimental support for EFI (UEFI). This virtualization product demonstrates the growing interest of UEFI in the industry.
This product was leveraged upon the development of the OVMF (Open Virtual Machine Firmware) release in the EDK II project (see here).
(For further information on Sun VirtualBox* version 3.1.0 see here)