This is a very cool application, and great use of texting/ mobile technology in a useful way.  We need to build this at the Bank!

Need to find an ATM machine? 

A new cell phone service from MasterCard provides cardholders with a mobile, location-based search and directory service so they can request to have the location of the nearest ATM sent to their cellular phone via an SMS text message.  ….

The voice-activated ATM Locator application is provided by Convergys Corporation, which built the application for MasterCard. Hosted on Convergys’ SpeechPort ‘platform, incoming calls are received and processed. …

It then sends the caller’s coordinates to MasterCard, which in turn accesses and provides ATM locations from a central data bank.

Source: Bank Systems & Technology : Need Cash? Texting Service Locates ATMs