The asymetric nature of most consumer broadband pipes, where providers limit upstream bandwidth, has caused problems for P2P file sharing. There is speculation that some operators are actually specifically blocking P2P. More recently, folks have begun to wonder whether they may do something to disrupt VoIP (SIP or Skype), in order to sell their own VoIP services.
So will the ISPs get away with this? Will we let ISPs tell us which applications are approved and which are not? Is this the kind of Internet we want to leave for our children?