Well, through sheer determination, I was able to get my Athletics tickets. I must have clicked 50 times in the last couple of hours and, finally -- miraculously -- some went back into inventory. This time the checkout system was slow, but it worked (no doubt because most had already given up).

I didn't see anymore tickets for the Aug. 16 night Athletics (which features the 100M men's finals), but a few minutes ago there were other good track and field finals still available. Not many other top-tiered events were offered this time, however, mostly prelims in second-tier sports.

It seems like this will be the final official ticket sale. I guess I'll now have to play the secondary market, particularly once I arrive in Beijing. I'm a bit afraid of counterfeit tickets (we're talking China here!), but at least the face value is so low, I can pay twice face for most events and still get a reasonable value.