Login to use?
@ Daniel "How will we prove we don't use iPlayer? "
Simple - enter your licence fee number when you register - once you register you can then access from anywhere in the world by logging on, there is no point making it more complicated than it needs to be. could even sell access outside of the UK but that would cause rights issues to non UK residents. (Sky player do something like this against your account - not subscribed at home - no access online)
Biting the hand that feeds IT
