I think it's remain to be seen how Berdych can go after a huge win..As you pointed out he is mentally fragile and i remember guys talking about him and he may go further in the biggest tournaments when he beat Nadal in Cincy 2005,when he showed the same game ad composure as well as he did against Fed last night,but didn't do nothing after that. Will wait and see how it goes but definently a run like Soderling in Last Years RG in face of Berdych on a major can happen.