Confusion About "FreeBSD now supports host and guest modes in VirtualBox"

[Ryan Ware]

Maybe someone here can distribute some enlightenment.  In the press 
release for 8.0 it says, "FreeBSD now supports host and guest modes in 
VirtualBox".  I understand what the host mode support is with the 
VirtualBox port.  What I don't understand is what support for guest mode 
is.  I don't see anything anywhere about guest additions.  As far as I 
can tell, guest support seems to consist of simply allowing the kernel 
to run in VirtualBox.  Am I missing something?

Thanks,

Ryan