You should be seeing Fontin Sans Bold across this whole page. Unless the trial limit of 20 visitors has already been reached. At this point, I assume the text will revert back to whatever is the availble second choice in my deck.
Given the experimental nature of this page, I haven't bothered ensuring compatibility with all browsers. I'll be looking through in each though and seeing which of them are enabled by default and which need tinkering with.
If you're wondering about this page or have any questions, I'm @davemcnally on Twitter and respond to all non-spam mentions/replies.