virtualbox-ose 2.2.2-dfsg-2ubuntu2 (amd64 binary) in ubuntu karmic

 VirtualBox is a free x86 virtualization solution allowing a wide range
 of x86 operating systems such as Windows, DOS, BSD or Linux to run on a
 Linux system.
 .
 This package provides the binaries for the Open Source Edition of
 VirtualBox. The virtualbox-ose-source package is also required in order to
 compile the kernel modules needed for virtualbox-ose. A graphical user
 interface for VirtualBox is provided by the package virtualbox-ose-qt.