Internet Betting Blocked in U.S. Open Tourney

so how do they see this happening? they can limit the sites that can be accessed from their wireless network, but what about mobile phones? one could always text or call a friend and ask him to put a bet online…

isn’t it just a futile attempt? somewhat similar to sticking one’s head into the sand and pretending that the problem doesn’t exist if you don’t see it…

or maybe i’m missing the point here?