[API Suggestion] OAuth
This allows for third party applications to give access to user information such as mail, inventory information, character information, chat, guild information, etc etc. The possibilities are limitless. I’d love to check up on my guild while I’m away from home and be able to chat with them. Maybe see what my friends are doing or if I’ve sold any items in my Black Lion Trading Post. I strongly urge you to consider OAuth as a possibility.