Youtube, twitter, facebook, everyone is going to get the latest jokes streamed live with smartphones. Actually, the quality is so bad. I saw a smartphone video clip of a Taylor Swift concert. Audio was garbage and video was blurry. On youtube, there are concerts taped and you can hear people in the audience talking or singing along louder than from the concert speakers.
I don't know how they are going to enforce that though. You want to put on an entertaining act, but does everyone want to wait for some security guys and ushers to remove every dude who is recording the act?