WE saw that from watching online too! Every so often they would zoom in on the giant screen with twitter feed! I kept trying to tweet and see if mine would make it up therePictures incoming soon, great show, atmosphere and live band.
What you probably didn't see were people Twitter trolling the hashtag #RMfall from which tweets were showing on the live wall. Nasty pictures, hate messages and other juvenile crap. I guess that is what you can expect when you allow the Internet to partake in anything public.