Elmer,
You're not dumb. Why make a dumb post? You know perfectly well that all those OSs run natively on Itanium.
Technically they do, but you are not dumb to know that practically, by 2003 standards, Itanium does not run any of these OSs.
FYI, in Seti@home processor efficiency chart (# of cycles / FLOP), while Itanium is #1 in IA64 mode, it is second to last in x86 mode, beaten by such powerhouses as AMD 586, Via C3, Intel 486.
It's ahead of the 386 though. <g>
Joe