The app was overloaded around the time the twitter account #ufconxboxlive(see attached image) posted about the 5,000 extra free seats.It seems like some people on twitter got in the app but couldn't buy the free event.This app isn't ready for the public yet. edit News article http://guyism.com/lifestyle/were-you-able-to-watch-ufc-141-on-xbox-live.html https://twitter.com/#!/search/realtime/#ufconxboxlive
I guess it was unexpected just how much demand it would put on the servers, once the bugs are sorted out i see apps like that been quite useful.