Nice one Phil - we've recently introduced the HTML5 edition which is fully compatible with mobile devices, and the iOS, Blackberry and Android operating systems, so you can read Railway Herald anywhere, anytime, and it makes the most of the built in features of the iPad, so it's really easy to use.
Still the same great subscription rate at £18 for a full year (47 weekly issues)
http://railwayherald.com/whatsnew/readanywhere
Enjoy!