Yes, go ahead and keep listening to speculation, keep wasting your time looking for something that doesn't exist, and always always always ignore good advice. I'd quit offering, but this blatent disrespect is fodder for ridicule.
For everyone else: This guy quit listening when I said P4, it seems he doesn't realize that Pentium D's are dual-core Pentium 4's. LMAO! At the same time, he doesn't realize that LGA775 supported Prescott (P4) before it supported Smithfield (dual-core P4, er, P-D). Dual LGA775 boards don't exist because Intel has completely separated their single and dual socket products, calling the single-socket solution Pentium (4, D) and the dual and quad socket systems Xeon.
If you look at the price difference between a Pentium 4 (including the Pentium D) and Xeon, you'll see why Intel is so protective of their multi-socket tech. Refering to the history of the matter, Intel had previously viewed every dual-slot P3 sale as the loss of a dual-slot Xeon sale, and decided they were better off not competing with themselves...by blocking the use of dual Socket 423, 478, and 775 processors.
Now, poor rbnjr will probably squeel that he knew Pentium-D's were dual-core P4 and simply wanted to keep them apart because of some unique new technology, but were that the case he'd also realize that the same LGA775 socket is also used, and that Intel is still holding the reigns on which products support dual-socket configurations and which do not.