I've wondered about the rally points aswell, as they always seem to be next to some knid of resource. What use are they and when should you use them?
Rally points are a standard RTS concept. A rally point is a location where all newly created units automatically go.
It's basically a way to reduce micromanagement -- instead of manually telling each unit you've created in your core cities to go to the frontier you can set up a rally point and not bother with the logistics...
Single Sign On provided by
vBSSO