Since I first looked at the list of orphaned Debian packages (available at http://www.debian.org/devel/wnpp/orphaned) some time ago, the package a56 has been the lonely leader of the list.
This package contains a freeware assembler for the 56000 architecture. These chips have been very popular in the 1980s (used in NeXT, Atari Falcon and SGI Indigo Workstations).
Updated versions are still used in today’s devices like some mobile phones (-> http://www.freescale.com/webapp/sps/site/homepage.jsp?code=563XXGPDSP)
So, being a bit nostalgic, I adopted this package and brought it to shape. There was even a small bug that I was able to close.