Wonderful work to hopefully resolve many confusing judgements. Will this technology also be employed to prevent goal like that of Maradona by hand?
Player orientation will be very important so as not to dissapoint them. They should also add more microphones to each player so the fight like that of Zidane can be prevented, which cost France Coupe du Monde.
Good to see that technology is helping more and more in sports and making referee's life easier. It is sometimes very difficult to judge if the ball has cross the line when it is in the air (e.g. when is corner kick is taken, players could disrupt referee's view from the sideline). Again I am not sure how a human could detect if the ball has crossed the line by 1.5cm...seems difficult to me. It would be interesting to watch Hawk-Eye system working in the coming mega tournament...I am sure there would be many such cases where the help of this technology would be useful.
This technology was used for the America's Cup (won by Oracle), it completely changed the way this kind of boat race could be seen, especially for the non-expert watchers. It definitely made the races much more attractive.
Technology doesn't replace people. Maradona's "hand of god" was seen by many and was available on replays right there with those days of technology. Referee decision is not to be overruled by any technological advance - it's the "people and procedures" domain.
Zidane cannot be excused by any audio recording. Provocations are part of the sport psycho war and any player of World Cup level should know it.