Unrelatedly, Monday is the launch of the Athlon 64 X2 as well. Anand has the specifics on motherboard compatibility for the X2, but coincidentally only the ASUS nForce4 board works with the CPU (for now). To be continued Monday...
See this news article:
http://www.anandtech.com/news/shownews.aspx?i=24217
I thought June was the release date?