Original discussion thread about a cross-platform py2exe on [[http://groups.google.com/groups?selm=ptji8wgr.fsf%40python.net|comp.lang.python]]

[[http://undefined.org/python/#py2app|py2app]] is a py2exe workalike for building Mac OS X applications, loosely based on py2exe source (but probably shares very little at this point).
Of particular interest to packaging tools on other platforms is [[http://svn.red-bean.com/bob/py2app/trunk/src/py2app/modulegraph.py|modulegraph.py]] (a modulefinder replacement) and [[http://svn.red-bean.com/bob/py2app/trunk/src/py2app/find_modules.py|find_modules.py]].