Thanks to everyone who participates in the forum!!! I see you all as well as I am are passionately interested in this issue. I have contacted ASUS USA about the compatibility of the board with X6800 and E6700 Core Duo Processors and they told me that there will be no information availabe untill the actual release of the processors. Today is the official launch date, and no information still available. Although, so far browsing through the charts on asus.com, I found out what some of you did. Two column based chart with the dual core compatible m/b on the left and single core ones on the right. It is unfortunate, but the P5ND2-SLI was only present in the right column.
Let's all keep in touch and update each other about the progress.
Thank's to all again!