It doesn't render well on Firefox 2 on Kubuntu (FWIW). The white text in the header is offset and is hard to read. And there is a big gap between that top image and buttons below it.
Curious why this got modded down; is this not useful info for people wanting to know how their site looks on a variety of platforms?
I modded it up - we're the ones who have to fix it. :)
I don't think they hired one, looks like one of the founders designed it