Please link mac users to this. It would save on email traffic apart form anything else :-)
At mapathons I've been heading there and using the JOSM version 7000 download link as quick way to get older mac users going. That usually works (though not ideal obviously) . I'm not sure what happens to people with MacOS between version 10.7 and 10.7.3 . The wiki page is unclear about that, but seems it doesn't apply to many people.