More Clear Map Borders?
There are a couple of on-edge skill points that are a little hard to figure out, I agree. Such as the northern one in Sparkfly Fen. Still, if you remember that each zone is a rectangle and zoom out your view, you can extrapolate to get a pretty good idea which side of the border holds the skill point.
If they make it too clear it will only increase the artificial feeling of the zone shapes, imo. And heck, if you run around looking for the skill point, you might stumble on other things of interest, right? -smiles-