The Google Places API has two new features, Place Photos and Radar Search.
The new Place Photos feature allows map developers to add photographs of venues to their maps. If you add the Place Photos feature to a map your users will be able to search for places and view photos of the venue directly on your map. Developers can define how the photos appear on the map by specifying the photo’s maximum width and height.
The new Radar Search feature allows map developers to provide heat map views of different types of place venues in a neighborhood or city. For example, developers could use the Radar Search view to show where the best streets in Paris are to find clothes stores.
Via: Google Geo Developers Blog