Someone pointed out that the instructions for installing on a Mac are missing from the .dmg image (thanks, Adam!). Accordingly, I've not only written an INSTALL.Mac.txt document, but have also rearranged the .dmg image to be more easily installable, and have written a small install-shell-script to boot.

This will appear in the next public release after 1.2.0.pre225.

If someone wants to know how to do it in the meantime, please email me.