I am not an expert about UK charities law, of course, and would recommend that anyone there with any questions or doubts as to what duties one incurs by becoming a director to consult with an appropriate expert. :) My guess, though, is that the law there is quite as reasonable as the American one.
Dear Mr. Wales,
AFAIK, David Gerard is a Director of a company limited by guarantee (WER), and might be a Trustee of a Charity in the not too distant future.
And I am sure he will correct me if I am in error.
Gordon Joly, London, UK.