it's exactly what i needed. i burnt my font collection before a clean install of panther, and i didn't want to load *all* of them, so x font info was perfect for the job of culling the junk i won't use.
quick. easy. free.
i had no problems running this in panther (10.3.3), and while it won't open all fonts, i presume this is because they are corrupt to begin with. it will also open multiple fonts, beeping out the ones it can't open. i have nothing but praise for this app!