Ever since I saw the opening trailer and seeing that chocobo I was hoping that when chocobos were introduced that they would have some sort of storage that come along. If the dev team isn't working on this they should be.

That being said, if storage space for chocobos is planned upon release PLEASE don't make the mistake of having your loot lost if you get knocked off your chocobo. Not saying the dev team had plans to do this but if they did it would be a VERY bad idea.