Reserve Another Century’s Episode Portable in Japan and you’ll get an official reference book as a bonus. Unless you roll it up, the A5 sized guide is a little big for a pocket at 8.3 x 5.8 inches.
The 25 page book has pictures of mecha from anime series in the game such as Eureka seveN, Vs. Knight Lamune & 40 Fire, and Gundam 00. For a list of confirmed series please see this article.
Another Century’s Episode Portable launches on January 13, 2011 in Japan.