looks cool...
1st tab is pretty standard - what the i key does and what the k key does (in parts).
2nd is all your traits -its interesting - they are saying that its all missions and events in GW2, but traits will be achieved through a list of things you need to achieve - closest to quests by the sounds of things.
3rd is your story. they've tried introducing this a little in EotN with the books. They really want to make GW2 much more of an RPG if you want it to be... I know Ziggy will be keen on this.
the 4th tab - achievements - looks like it will contain everything about titles etc. I particularly like the example of the slayer title - which records the various types of creatures you slay. By the looks of things, if you are friends with someone, they will have access to all this info too.
well... i imagine no one will read this, but whatever...
enjoy