There have been several attempts at matching package names across distributions.
Here's a list of different efforts :
?DistroMatch : http://www.enricozini.org/2011/debian/distromatch/ (currently unmaintained : http://www.enricozini.org/2012/debian/giving-away-distromatch/ )
the ?PackageMap tool to map between Debian package names and the data: http://lists.debian.org/debian-mentors/2009/11/msg00450.html