The official I spoke too soon post.
It seems that I was taken in by the "Releasing 8/8/2005" line that was on the TIBET home page. This definite release date was replaced with the most indefinite "Coming Soon" early the morning of 8/8. Hopefully the TIBET project is not total vapor ware. Oh well, I'm back to pinning my hopes on MS's Atlas project. I too will be going to PDC this year and look forward to getting my hands on the first preview of Atlas.