If anybody at Google says that they're not aiming to be a portal, they are lying through their artificially whitened teeth. Yesterday, Google very quietly released (in beta as always) a preview of their Real Estate search service, which utilizes Google Maps and Google Base to provide real estate listings with fly-overs of the home.
The service can be found if you go to Google and search for "homes for sale". You can customize by zip code to see available listings.
Examples: 94086, 94303, 95969, 80122.
While it's not an eloquent and visual service in the league of Zillow, Google Real Estate could become the standard if it adds the expected bells and whistles, while capitalizing on Google's reach and brand.
Listening to ''Stay'', by DJ Encore (Play Count: 4)