Germany-Australia was definitely an improvement on previous games like everyone's been saying.
There's not much more I can add. It's good that Germany were just as interested as playing further after taking the lead rather than just leaving it as, erm, certain other teams seemed to have done. Australia have it in them to do better against Serbia and Ghana I think, but losing Cahill was no good (I think the ref generally made the right decision, going by the tougher rules being implemented) - they need to work around that. That early chance of theirs could've changed the game somewhat, but the Germans were always going to be the better side here. I'd put them high on my predictions table.
I think the second place has blown quite wide open in Group D though.
Also, was this the first time in the tournament a ref went after players for what they seem to be referring to as 'simulation'? It worked, in my opinion. It was more enjoyable to watch when they weren't trying to break into acting constantly.