They don’t appear to work in Camino, however. I suspect it’s not “just me” because WordPress’s favicons don’t work in Camino either. Google’s does, though, so it’s not “just Camino”. The million dollar question, of course, is whether I care enough to bother looking into it further. They work on Firefox and Safari, and they’re clearly deeply unimportant, so it’s hard to get too excited.