The patent hinges on the definition of "locked" and "unlocked". I haven't read the patent but if Android can argue what "unlocking" means then it would be a way to get around it.
What a long winded way to get your point across. But yes, BT are obviously thinking so short term that they will end up asking all websites to pay for their bandwidth by the end of the year.
Let the market decide the price and stop chasing the BBC for revenue.