Trading post on mobile / web browser
I thought that there was going to be something like this at some point but it hasn’t happened yet. I can’t remember when or where the info was released about that to point you to it. And I don’t even know if there is more current info or whatnot about it. I was just thinking today it would sure be nice to be able to check on the status of my TP listings etc from outside of the game on occasions you don’t have access to you PC or wherever the game is installed.
There was an article about the “GW2 Extended Experience” where this was going to be one of its features. Other features included chatting to Guildies who were currently playing in-game and some map feature, all from a mobile app or web browser.
In terms of progress, it might be a while since they have other priorities.
It’d be kind of neat, and a first step toward having an MMO in which many traditionally “NPC” roles are performed by offline players, hitting buttons to feed that addiction in FarmVille style. :p