Here I go for kqueue:
 * the docstring of test_kqueue.py is wrong
 * the tests are a bit light. It would be good the have a test like
test_control_and_wait in test_epoll.
 * the kqueue_queue_control (and the pyepoll_poll) are now completely
wrong! You should not limit to FD_SETSIZE, these 2 systems are there
because they're able to handle for fds than that. Also, this buffer
thing looks like a premature optimization. I'm unable to tell if it's
correct or not.
 * the NETDEV and related flags aren't defined under OS X 10.4. I guess
there are flags for freebsd, but kqueue should build on OS X too.

I've been able to use this module for the twisted reactor, so the
functionality is OK. But thsi FD_SETSIZE limit is a huge problem.