I personally would be impressed if Apple released a Dothan based Mac Mini for ~$499 at MacWorld Paris (September). Small, quiet, fast, *and* can dual boot OSX and Windows.
I would actually be even more impressed if Xcode could compile universal binaries for OSX PPC, OSX X86, *and* Windows X86.
Sadly, I can still only see hardware sells get smaller. Currently, the processor upgrade market for Macs is relatively small, as upgrades are literally hundreds of dollars (a 2.0 GHz G4 upgrade costs something like $400-500, if I recall correctly). If I buy an Intel based Mac and want a faster processor a year or two down the road, I don't need to buy a new Mac anymore, I'll just look towards NewEgg for a $150 Pentium.
Support is far too big of an issue for Apple to deal with opening up OSX to the rest of the world. Currently, Apple only has to worry about three processors, and most likely one chipset for each (G3, G4, G5). On the Intel side, Apple will have to worry about just what Intel produces. Going A64 or opening up the software for use anywhere would mean having to support ATi's, nVidia's, VIA's, SIS's, and hundreds of other off brand chipsets. Of course, Apple will also end up having to field calls from irate Dell users wondering why OSX won't install on their systems.
I can't see Apple holding the same price premium as they have in the past (on the desktop side, at least- their laptops are more or less competitive in everything but processors). Would you pay an extra $100-200 for a machine that's elegant, quiet, and made of sturdy materials? I'd consider it.
Or another analogy: Your average PC is a Camry, the Mac version is an ES300. Same drivetrain, the Lexus has a classier look and feel.




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Interesting.. ATI/IBM/MICROSOFT, NVIDIA/IBM/SONY
, ?/INTEL/APPLE
They all want to do this living room do all box.. will intel supply graphics chips too I wonder..