Duke, I think you miss the point here. You said Solaris isn't available on x86. I said it is available on x86 and shipping with Opterons (and Xeons too for that matter).
Please note that this is the 32b version of Solaris for x86 that was resurrected last year. The 64b version is expected around the end of the year, and your post about it being 6 months out might well refer to this 64b extention of x86 exclusively.
Ofcourse once the 64b version is available for Opteron it is '15 minutes' away from being available on 64b enabled Xeons too.
I think the market is and will continue to prove you wrong though on customers not buying the 'expensive' sun servers to run it. Fundamental reasons for this are partly because of attractive bundling, partly because of service, because of very good software availability on their top notch version of unix, and also because Sun is a well regarded first tier company.
Kind regards,
Rink