It was resolving fine for me and as I doubt everyone on AB is using the same DNS servers a DNS problem wouldn't effect everyone at the same time or resolve fix it's self at the same time. looked more like a server or connection to the server problem to me.
Have you got some kind of DNS diverter on your connection? you know, like openDNS take you to their own page suggesting other sites if the site you are looking for can't be found or doesn't respond? 'cause it was still resolving to the correct address for me just no response.