I don't know if it is relevant to the discussion here, but a response from BT management quoted on the BT forum states that if a user adds
www.webwise.net to their hosts file with a resolved address of 127.0.0.1, whilst opted in to Phorm during the forthcoming BT trials, they will lose all internet access. Would adding to the hosts file have the same effect as blocking? If so, this does begin to smell like a secret trial, perhaps on a small number of ubrs?
http://www.beta.bt.com/bta/forums/th...rt=0&start=135