Dropped into SIGGRAPH to check out the exhibit hall. Thought it was only proper since the show doesn't come to yer home town every year. I found myself non-plussed. However, it appears to me that the 3D killer app are the '3D Printers' that can mill objects from 3D models. I saw a Roland model several years ago, but at this show there were at least 5 vendors selling these devices.