-- Feel free to delete this if this has already be covered, I don't remember it but I don't visit the forums much.

The Washington Posts mentions that Google Maps now show train/metro stations and outlines of buildings in the map view:
blog.washingtonpost.com/faster ...

Here is an example from the story:
maps.google.com/maps?f=q&h ...

Adding the metro stations is a big help for me. We want to go out in DC I have to use Yahoo maps so I can figure out what metro station is close.