iOS version of Google Play Books now matches Android version with Google Maps feature1
But this is the story of something different. The name of the app gives away the reason why the Android version of it had a 7 month head start over the version of the app that resides in the Apple App Store. It's a little ditty by the name of Google Play Books which was updated this past September for Android users with an outstanding feature that lets you find a geographical place mentioned in a book, on a map. Tap and hold on an address in flowing text mode, and you will get a description and a Google Maps look at the location.
Also added with the App Store update is a user guide, support for EPUB books and vertical Japanese flowing text, plus improvements in stability and performance. So now when it comes to this app, it's a tie between iOS and Android. Hopefully we will see more of this "app equality" soon for both sides.
source: GooglePlayBooks via Engadget