You're driving down a street and see a really pretty home with a For Sale sign on the front lawn. You write down the broker's information and can't wait to get home to take a look at the listing details.

If you have an iPhone, you can get the information on the spot.

Zillow.com released a free iPhone app last month, enabling consumers to get the low-down on more than 88 million homes - and not just the ones for sale.

The app is GPS-powered so the map follows you as you stroll, with price estimates popping up along the way. Pass a sale sign and you can access pricing, number of bedroom and baths, square footage and other info.

"House-hunting is, inherently, a mobile experience," said Zillow's CEO Rich Barton in announcing the launch.

This will add a whole other layer to that Sunday afternoon perambulation.


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