Something that you don't really see until you play the game. The draw distance sucks until you render areas over time. Areas you have already explored seem to render faster. When you enter a place you have not been in a while, it can be completely fogged out and when you walk into the fog it says "please wait." After a couple seconds of rendering that place you can walk about normally and see far away.
Note: this could also just be because my processor sucks, so the system gives it time to catch up with me. It seems that if you stay near the edge of the fog, things will slowly render off into the distance. It seems the alpha testers did not have my problem. I also imagine that if someone hosts a server, the server will do all of this map data for the clients.