Apparently, Comcast is forging packet data to its users when they use file-sharing applications like BitTorrent or Gnutella. The Electronic Frontier Foundation (EFF) has released difficult to use software for users to verify this for themselves. It's a python app, runs from the command-line, requires the pcapy Python library, setting up a tunnel (potentially), WireShark , and worst of all, a FRIEND. Anyway, I'm glad I'm not on Comcast but I might check out Cox to see if they're doing anything as well.