HardMac (en) has posted screenshots of what may or may not show a demonstration of an unreleased Quad Processor Intel-based PowerMac with Hyperthreading support. Errr . OK

If you ask me the screenshots look doctured - but here goes.

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.

Via