MacBidouille has posted some screenshots from a "anonymous source" that point towards the possibility of Quad Processor Intel Macs with Hyperthreading support.
"Without giving much details, those captures shows MacOSX x86 running on a 4 physical CPU-based MacIntel with Hyperthreading enable. One can clearly see 4 physical processors recognized while 8 logical processors are recorded by the CPU monitor.
So MacOSX can really manage without problem any MacIntel based on either physical or logical processors."
Screenshots below -
Image not in archive — Quad Intel\'s