This is another political move for BitTorrent to "get out of trouble before it starts". Of course, its also a PR move for Motion Picture Ass. of America (MPAA) to show that it is not another Microsoft (sue first, then talk later [if you remember the guy who single-handedly brought down a team of Microsoft lawyers]).
Very soon, we may find that other p2p networks will follow suite and shake hands with MPAA and Co. Maybe its time we move on to freenet. (I don't like freenet. It is very slow.)
To find out more about BitTorrent and MPAA, read this.