I'm still away from finish but, I'm trying to build my first fluid layout. Unfortunately, I'm getting some headaches.
If you narrow down your window here, and you look at the three columns at the bottom over the white background, you will notice that, at same point, the headings overlap over each other.
Also, the same "effect" seems to happen to the gray button down the page. The text doesn't seem to go on the flow when you shrink the page.
I'm not sure if this IS the best result we can get, and if we must use media queries from here, OR if it's still indeed something that needs to be done so that this, pretentious fluid layout could became indeed, a true fluid layout, before, start digging on those media queries.