I'm very grateful that South Africa are back in the game - they proved right from the start of their post-apartheid cricketing rehabilitation that they are a dangerous side to take for granted. Australia and South Africa are still only the first and second teams ever to make 400+ runs in a fifty-over session, and they did it against each other and in the same game. South Africa, batting second, won against a disbelieving Australia, who had every reason to expect it couldn't be done again in a hurry.
ETA: One wicket for eight runs, two and a half overs in. This is NOT GOOD.
ETA2: South Africa by a whisker. A damned close-run thing.