Clearer OS X installation dialogues
I think the screenshots would go great right under the download button on https://www.torproject.org/download/download-easy.html.en. I am thinking of a dialogue similar to the picture attached.
think it would also be good to show how to override Gatekeeper the safe way (Ctrl-click then Open). There are issues with people not being able to open the dmg when they first download Tor Browser since the default is a warning message which does not give the user an option to open the files.