Esri has launched ArcGIS Earth, a free, desktop-based interactive globe that anyone can use to explore the world and work with a variety of 3D and 2D map data formats including KML.
ArcGIS Earth allows users to quickly display data on the globe, sketch place marks, measure distances and areas, and add annotations to easily understand spatial information.
ArcGIS Earth users can explore open standard KML and KMZ data, shapefiles, imagery, and web services; tilt and rotate the view; measure distances and areas on the globe; and supplement maps with sketches and annotations.
ArcGIS Earth includes free content that encompasses global imagery, topographic maps, world ocean maps, OpenStreetMap, and publicly available maps shared by millions of ArcGIS users around the world.
Learn More, Download ArcGIS Earth
Note: At the present time ArcGIS is only available for Windows.
Read the Complete Announcement