Please focus on the token app first. There's no real need for "Libra Eorzea" as far as you can access the Lodestone and database stuff on any web browser, but that's not the case for the added security given by the token app!

Even Blizzard has brought its Battle.net Authenticator app on Windows Phone. It's not the same deal to develop an extended UI like the FFXIV database on mobile devices than creating a "simple" token app (simple in terms of development cost). I really hope SE will bring this to WP users too because we deserve the same secured account managing than others (without considering buying a physical token...).