The app uses the notion of drawing shapes on map to define search areas. I recently uninstalled it from my iPhone because I never used it after my earlier positive mini-review of it.
The 1.04 update brings:
– Improved quality of our data to deliver the freshest local information possible anywhere in the US
– Partnerships with Zagat and OpenTable
– Device-specific optimizations to improve user experience
You can read more about it in Yahoo!’s Mobile Blog: