Following yesterday's post, the navigation aide (now named WAIN) can load information from an object in the environment - specifically a UUID for the map, and a list of landmarks. Time for a video - including an unnecessary overlay that I just learnt how to add.
To be a useful system users would need to know where to get these updates, and so I've created a logo to identify WAIN info points. A user arriving in a new location and spotting one of these signs, would then know that some map information is provided.
I have the code to take SL's internal Sim maps and apply it as the texture (taken from a wiki example originally I believe), but the Lindens seem to be in the process of changing the way maps work so I might leave it for a while.