Funny how a few hours of starting this thread there is a interveiw with Yoshida and Playstation about this.

Naoki Yoshida:The first is the development of a large-scale and new system surrounding the Glamour system and player inventories. The second is allowing for players to manage their retainer’s inventory, chat with friends, and plan out schedules without having to log into the game—this would be through a companion app on smart phones. I believe we will be able to release more details on this soon. I hope you’ll look forward to it!
http://www.psu.com/feature/34640/int...future-content