First, I should say that I'm really enjoying both Pathfinder and the Gamemastery modules. They are high quality through and through.
What I would like to see more of:
* More descriptions of NPCs. It seems like very few get actual descriptions.
* Descriptions of common clothing for the various races, regions, etc.
* Descriptions of common architecture for the various races, regions, etc.
Perhaps the more "common" descriptions could be a blog(s) entry or some such.
Best,
E