Build Binary Packages from Installed Ports

[Jason C. Wells]

The new (to me) ports tools are pretty slick.  Is there a way to build a 
binary package for each installed port without upgrading or rebuilding 
each installed port?

As I read the man pages the only thing close to this is 'portupgrade 
-afp' which will give me the full set of packages, but insists on 
rebuilding everything first.

Thanks,
Jason