I use my Yelp Android app - click on nearby / restaurants / options: open now, within 5 miles. That's how I usually discover where I'm going to eat for the evening.

In Dallas Thursday (04/05/12) and Friday (04/06/12) - Lunch at Meddlesome Moth, one night at Nonna's and the next night at Oak - its the way I find restaurants when on the road probably 90% of the time.