WhitePages Mobile is a free application for the Apple iPhone, which allows the user to look up names, addresses and phone numbers from WhitePages.com while on the move. The WhitePages application is actually made by WhitePages.com.
iPhoners search for phone numbers on WhitePages Mobile simply by typing in the surname and a street address, city or state, and WhitePages actually proposes city names while you type. Also, each search field has a grey X at its far right, and if tapped the field clears of all data, which removes the need to continually tap the back button.
The WhitePages search results page also shows a map thumbnail of the address searched tap on the map and the app launches, and can also save 20 of your most recent searches. For more information hit up the source.
Source — macworld