At present the only remaining issues with the patch are:

* 10 leaked refs in test_collections
* a failing test in test_enum

===========================================================================
     key: __members__
  result: OrderedDict([('red', <Color.red: 1>), ('green', <Color.green: 2>), ('blue', <Color.blue: 3>)])
expected: OrderedDict([('red', <Color.red: 1>), ('green', <Color.green: 2>), ('blue', <Color.blue: 3>)])
===========================================================================
test test_enum failed -- Traceback (most recent call last):
  File "/home/esnow/projects/cordereddict/Lib/test/test_enum.py", line 1668, in test_inspect_getmembers
    self.fail("result does not equal expected, see print above")
AssertionError: result does not equal expected, see print above

I'm not sure what to make of that test.  By all appearances it should be passing.  My guess is that there's some wackiness afoot over in Enum, but I'll take a closer look after I get the ref counts sorted out.