In a nutshell, NCsoft's new update lets players draw on Aion's in-game map in four different colors, the better to plan out PvP attacks, strategize for PvE, or even show a newb exactly where to go.
What's that? This isn't some ground-breaking new MMO feature, you say? Well, you're right. It's pretty cool, though, and we'll also point out that unlike the similar functionality in Guild Wars and third-party World of Warcraft mods, your Atreian cartographic masterworks may be saved, loaded, and passed around amongst members of your group, legion (which is Aion-speak for guild), or alliance.