Virtual Worlds News first ran this story a couple of weeks back, when it was announced at VW'08.
http://www.virtualworldsnews.com/2008/09/rivers-run-red.html

I have since pointed friends at the "press release" on the RRR website (as recently as 24 hours ago in fact). And was intrigued to find, when I wanted to quote from it today, that it had now disappeared.

Perhaps a case of "excessive enthusiasm"? Who got cold feet about whom? I don't suppose I will ever get the full story - but good luck hunting it down!