Obama's speech signaled that he's over his obsession with chasing the nonexistent pipe dream of bipartisanship from Republicans. He defined what his party stands for and why their values are superior to Republicans'.
Augusts haven't been very kind to Obama. Two years ago, August was "Reverend Wright" month. Last year, August was "death panel" month. By that measure, at least, this past August wasn't actually all that bad.