The Drupal Library for the Bing Maps API is a PHP library. This Drupal PHP Library provides a field widget that allows for integration with the Bing Maps API for searching. This Drupal module provides a SOAP based interface, and is also structured to allow for JSON based implementation.
Location-sharing service Foursquare was down most of Monday, apparently due to a database issue. No Foursquare website or apps were available. And with the API also down, third party applications were helpless. Yet, it's a good reminder to developers to plan for downtime and to providers to have communications in place to let others know about your service's issues when they arise.