There's an app for that.

[SidRheingold]

Plans for possible Apps were mentioned back in November 2011 (e.g. Live Letter II):

- App for viewing and organizing inventory
- App for searching and purchasing items directly from the market
(Yoshida said that this will be a "separate auction house system specifically for the app")
- App to access Housing to perform tasks such as Chocobo Breeding and Farming [Gardening?]

I don't know how this can be done without granting huge advantages to people that use these applications compared to the people that don't.
Some players might focus on the App AH only, as items are sold much faster there. This is a huge problem imo.

Looking for more sources on that topic atm.