I try to keep this list somewhat prioritized. The ones that will give the most bang for my coding buck are usually at the top.
Short term Add a way to filter out certain categories of players from the Who View window.
More comprehensive would be to add widgets to specify a rank range, min idle time, etc. Gives visual feedback as to whether the user is browsing. This makes it easier to watch a game on the side while you're mainly working in some other window. Add realistic stone-click sound . Requested by geek .