VentureBeat has confirmed that Google is testing an ad program on Urbanspoon, an iPhone application that introduces local restaurants to users; and Backgrounds, a mobile wallpaper directory.

The ads are text-based and feature one company at a time, just below the browser bar. Clicking on it guides users to information about the advertiser; or, in some cases, a mobile website.

It has not been revealed when the capability would be availed to other developers, but VentureBeat observes that at present there are issues associated with ensuring the messages are going to the proper demographic.