http://www.theregister.co.uk/2006/12...of_apple_bugs/
Apple has taken some action after the "month of kernel bugs", but I'm not sure they will react kindly to some bloke exposing vulnerabilities to the world...
I personally believe that an open-source model in the end improves security, so therefore I'm inclined to agree with mister Finisterre.
What do you think? Is it a good thing?