TW,
The "Yamhill" 64-bit Pentiums are out there. AMD was first with them on the market, however, as Intel tried to artificially push the Itanium with HP. They had the 64-bit Pentium long before, but MBAs wanted the Itanium chip. As of now, I hardly hear about an Itanium implementation that isn't either HP-UX or Linux. Vendors are having massive trouble moving their code from PA-RISC to Itanium, and unless there's a major performance increase, they don't.
vPro is for desktop and server chips, and is a response to try and get Linux to do what VMWare does already. Xen, the next generation of VMWare, and other virtualization products build off of it. AMD, however, has their own implementation, and vendors are going to have to support both.
The Opteron is eating Intel's server lunch. It costs less than the Xeon or Itanium, and does more. Intel put their head in the sand. AMD has some innovation issues as well (the next generation of chips, K9 or K10), but they're taking market share because they are delivering what customers want at low prices.
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