Federal Consortium for Virtual Worlds
Although a good chunk of their work so far is presented in Second Life (as one can see in this video), there are a growing number from this group and other federal agencies that are looking at the current 3D web open standards for use. From those I talk to with federal agencies, open and standards are a must when dealing with serious government applications and funding sources. Uncle Sam isn't going to spend millions on developing training tools in SL or any other company owned platform. The GSA is a prime example of this.
X3D had an enlightening presence at the last event (surprisingly not many in this group even knew about the current web3D standard) and was well received. I look forward to hearing more about that report from the X3D rep that was there and will share this image for now. Hope to have a chance to get a few answers about the event from the organizers to share in a future post. Share more then.