Google enhances maps

Google has quietly added some nice features to Google Maps. The latest additions I noticed are:

• "Traffic" button. If Google has the data, you get a "mashup" that shows freeways and red, yellow, or green status for various freeway sections. The Traffic button is an on/off toggle, unlike the Maps, Satellite, and Hybrid buttons.
  Example: Sacramento, CA
• Building shapes. At the closest two zoom views, the Maps view now shows buildings for some major cities. It looks like Google used the Satellite view to derive the building shapes.
  Example: Boston, MA