Come to think about it having your chocobo hold gear and stuff for you could be an interesting feature and one I haven't seen in any MMO I've played (that I can think of, at least). Imagine your chocobo being your buddy, sort of like it is in the beginning of FFIV. You don't have an item that you carry around that summons it but it is a mount that comes with you wherever you are, holds stuff for you, maybe even progresses with you. I can see a couple problems crop up such as having a bunch of chocobo running around in addition to a character...it would basically double the crowd. Also, what would happen if you get a warp or get teleported somewhere? I suppose it could go with you if you are next to it and if it can enter the place you are going but what if you left it outside of a dungeon to wait for you?
Things to think about.
they could always give u a quest in which u have to raise your personal chocobo much like FF11. after a specific point u get a whistle in which u can use to summon your chocobo onto the battle field and interact with it. when u interact with it you could have options like riding it, or even using it as a 2 way dilevery system from your mog house storage and personal storage.
it doesn't have to be with u at all times. u could very well just appear have u interact with it for a minute or two then dissappear.
back to the pop block... it didn't do much for me... most of the stuff in that pop block was already argued to death here by someone.