I know you're not finished and I know you've probably thought of these already but I'm going to post them just in case. I was going to post in a paragraph, but it'll probably be easier for you in a list.
- I'm sure there's a reason for this, but I have no idea why it is on N rather than M.
- Use a gani for displaying heads with a ZOOMEFFECT in it so you can see player hats on their heads. Attached a simple gani for that, but it was a pain to make as the hat position moves when you shrink the head regularly.
- I like how the map hides people who are in stealth, but I don't like how it cancels out my stealth.
- The font on the names are too small, just use the user default please. In addition to this I actually think many people use the feature of clicking on the playerlist to find certain people, or hovering over their heads to see who the person is; I'd like to see that on this as well.
- I like the scroll speed and control, makes me feel like I'm viewing a map of a vast world.
- It'd be nice if there was a glow around fellow nation members, or something that would allow you to identify them better among the crowds. Perhaps the same could apply for guilds/clan/party too.
- Use an icon for the boats, rather than a head.
- Display those respawn nation flags as 16x16 icons too, and represent the color of the nation that has them.
- Personally set markers, party set markers, clan set markers and nation set markers!

Man, so many possibilities.