I'd love to be able to have the following in game:
  1. The ability to track achievements you are working on. Have a check box that shows it in the quest list, or make another one, that displays the achievement and how many is left (5000/10000).
  2. The ability to resize the achievement window to show more achievements on the screen (not scale).
  3. Show the date and time of an awarded achievement in the frame.
  4. For achievements such as the map ones where you need to explore different areas of a zone, show a checklist of the different zones. Instead of having "explore north shord 1/1" have "explore north shord x/y" and then if you drill down on the achievement, the different areas of the zone can be shown if they have been explored or not.