Federer is sometimes called mentally weak due to his relatively poor breakpoint conversion rate (about 20 or so opportunities in the USO final against Novak?), I then usually answer that he has the best tiebreak record among active players. So I think it's more the case that during break points he is facing serves on his ad side, i.e. his weak backhand side.
This match was like the complete opposite, Federer lost all three tiebreakers and managed to convert 7 break points to Novak's 3 (!), hit 94 winners to Novak's 54, and won the points 218-204. Tennis can really be a cruel game, I felt he played well enough to win this one on his own terms (unlike the two past Wimbledon finals between the two). Oh well, I guess it's hard to feel sorry for a 20-grand slam champ...still...what could've been.
Fantastic match regardless.