Rob Elkins, ESRI Developer Group product manager, sums up the major announcements from the 2009 ESRI Developer Summit in Palm Springs, California. Elkins touches on the ArcGIS 9.3.1 release, the new ArcGIS Online search and share application, Microsoft Virtual Earth integration with ArcGIS, the ArcGIS API for Microsoft Silverlight, and ArcGIS Explorer 900. Listen Now