This does look useful, and I've printed it off. But at least one thing is wrong. You don't have to have your EHIC on you for it to count. I mislaid mine just before we went on holiday recently and checked this out in a panic. This is from the email reply the EHIC team sent:
It is not compulsory to have the card when travelling. Should the need for treatment arise during your visit to an EEA member state or Switzerland, you can apply for a Provisional Replacement Certificate (PRC) from the Department for Work and Pensions on 0044 191 218 1999. There is no other reference number available as only an EHIC or a PRC will be accepted. You cannot apply for a PRC unless the need for treatment abroad arises.
So there's another useful number to add to the Little Lifesaver!