"uTP on the other hand allows BitTorrent nodes to dynamically adjust bandwith congestion at the protocol level and also provides some additional functions, like

"uTP on the other hand allows BitTorrent nodes to dynamically adjust bandwith congestion at the protocol level and also provides some additional functions, like support clients using low bandwidth or sharing ADSL line with a web browser." In other words, this isn't a threat to Bittorrent as a technology alone, yet. I wonder how much of an impact it makes on uTP-enabled clients and if you'd be better off disabling it if you connect to an affected swarm.