The Cities on Google Maps Changed Again This Week. Why? (41latitude.com)

Some interesting thing he pointed out before is still happening, except not interesting this time because there is no new information.

In other breaking news - other stuff is happening somewhere else: http://www.theonion.com/content/video/breaking_news_some_bul....

I think the most likely explanation is that Google uses a stochastic algorithm to position labels on the map, similar to how Graphviz neato/fdp does vertices (using a force-directed algorithm).

they are probably testing out how people use their tools. if having the name of a city at one point influences where people are clicking, or if people are looking for one place instead of another, etc...