Having read the other thread about photographs of railcards being unacceptable, I'm wondering why it's not possible to have a smart phone app with a copy of your rail card on it. The photo and expiry date can be digitally watermarked to prevent alteration, and you ought to be able to upload your e-railcard when you purchase the conventional one. To be clear. I'm not advocating replacing the existing physical cards, just supplementing them. Most smart phone users tend to have them with them all the time, and it would reduce the incidence of forgotten or lost cards.