Okay, based on what has been said so far, to collect this all up:
With the exception of a possible token based application (difficult to do outside of a whitelisted phone ID without defeating the purpose), everything would be one application, which does all of the suggestions below. This application will also be available in browser form, with some minor modifications. All actions will require the player to be logged out, in their mog house. The city you are in will affect some functionality.
- Fishing
Based on which city you are in, you will get different fish. Fishing will assume you are over level 20, and be subject to fishing fatigue.- Inventory
You will only be able to access Locker/Storage options if you are in the correct city or have performed the correct quests and payed for the correct access.
You can also change gear.- Auction House
Expect the same delays between transactions. Fees will be based on the city you are in. You can only auction items directly in your inventory, and only buy if your inventory is not full.- Delivery Box
Able to check and pick up items from the Delivery Box.- Storage Slips
Check the contents of your storage slips. You will not be able to retrieve items however.- Crafting
Only items in your inventory are craftable. You will not be able to do Synergy however. There is a delay between crafts. You can pay for Advanced Synth support, which will wear off when you log in, or when you have performed a number of synths.- Chocobo Raising
Raise your chocobo. Only items from inventory are available. You can also buy and sell items certain from the NPC in the chocobo stables. Prices are subject to the fame you have in the city you are in.- Chocobetting
Bet on Chocobo Races and listen to the results from the Official Chocobo Circuit Linkshell!- Chat
Speak in Linkshell chat, or in tells. Can also listen (but not participate) to Yell messages from Jeuno. Can also send and check messages from friends list. You can switch to any linkshell in your inventory as well.
On the browser, Fishing, Crafting, Chocobetting, picking up items from the Delivery Box, and selling/buying items on the Auction House will be subject to CAPTCHAs to prevent abuse. This will be per transaction.
If balance is really an issue, the browser version clears it all up for those without smartphones. If this is still an issue, I'm sure we could have a version of this for download on Xbox Live Arcade and the PSN.