Not really, it's to compete with the HD + information at your fingerprints in-home experience. So many people spend Sundays watching more than one game at a time, monitoring fantasy teams, etc. That is their competition, and the point if the original article.
The venom and pessimism in this thread is a bit over the top.
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The addl. info they are trying to put into the stadium ... you think your gonna get for FREE ?
The devices will be at your seat and your seats will cost even more.
Adding to and already overpriced ticket price.