I was surprised to see that the development of IFC is really still continuing. I had started to feel like the whole thing was dying a slow painful death. I checked the IAI's Building Smart web site and found an IFC Map Roadmap. Looks like things are progressing and we may see the new version as early as this year (which there isn't a lot left of). My hope is that it is incorporated into the 2012 releases of Autodesk products and we see a significant gains.