The A World of Ice and Fire app (as it’s called on iTunes; it’s called the A Game of Thrones Guide on Android, although we’re uncertain if the update has reached that platform yet) has been updated with an excerpt from the forthcoming The World of Ice and Fire (Pre-order: Amazon US Amazon UK). The excerpt is drawn from the section of the book devoted to the ancient history of the Vale up to the point in which the conflict between the Andals and the First Men culminated in the Battle of Seven Stars, where the last First Man king fell and the Arryns came to rule the Kingdom of Mountain and Vale.
The app is free to download, and with the latest update includes all the offiically released excerpts from The Winds of Winter, as well as the World of Ice and Fire excerpt.