55154635_ual_Globe____ArcGIS_Comparison__ArcGIS_KML_Layer_Functionality
[KML Feature] Balloons
Descriptions for placemarks and other KML items in the Google Earth 3D view as a balloon connected to the item location. In ArcGIS, item descriptions are shown in the Identify dialog rather than as balloons in the 3D view.
USGS InfoBank Virtual Globe -- ArcGIS Comparison
ArcGIS KML Layer Functionality