It looks great and works like it should. You can choose a location or use 'my location' which is detected automatically. There are 2 other categories to randomize or lock if you choose: Food type and Price. If you want to only look for low priced food in your city, click to lock the city and $. Then hit space to spin the middle tumbler. A restaurant will be chosen at random that fits those specifications.
From there you can select the restaurant for more information. By clicking on the phone number, you will automatically start calling the restaurant. If you click on the address, you will be taken to google maps or your default maps and shown the location on the map.
It will likely be showing up in App World soon, but for now you can grab it here: http://urbanspoon.com/blackberry.
Sent from my BlackBerry device on the Rogers Wireless Network