not 100% sure if the most that a country can have representing in each event is 2 like the all around. For example even if the entire US team had the highest qualifying scores for their entire team than any other individual from other countries - only two can compete.
Yes. Same rule applies to the apparatus finals.
I've heard a lot of complaints about this rule, but it really seems consistent with the Olympics so far as I can see.
China could probably send 20 gold medal favorites to every diving and table tennis event. And Ethiopia could probably send 50 gold medal favorites to the marathon, with Kenya sending another 50. Yet they are all limited to two or three athletes per event. This gymnastics rule seems similar in nature.
I think Gabby, as great as she did in the all around and team, was overwhelmed and tired out. I think it did her in the individual events.
After she won the all-around, she was mobbed for interviews, and did much less training than she otherwise would have been able to do leading into the apparatus finals.
the one other girl (who was favored)
Jordyn Wieber has apparently been dealing with a stress fracture all summer. That not only limited her directly on the floor of the Olympics, it has also dramatically curtailed her training routines.
Also - the US women's tend to focus on winning the team. So they try to selectively pick the best overall team. That's why in the past you see less of individual medalling in women's gymnastics.
It would be better if every gymnastic event had its own independent qualifying, so people who don't fit into team calculations could still compete in individual events.