ESRI announced today that ArcGIS Explorer is available to the public. This unique lightweight application lets you not only connect directly to a variety of ready-to-use globes hosted by ESRI but also provides tasks that allow you to do more than just visualize a simple map. You can use ArcGIS Explorer to leverage data, services, and applications on the Web by easily connecting to your own ArcGIS services or those published by others. This application helps you extend the power of these Web-based services by fusing them with your local data.
Well there you go, you can freely use AGX. Hooray ArcGIS!