All I know is that Apple should do whatever they are working on WITH Intel's cooperation. The last thing they need is to piss off Intel. Look at what AMD did with K8 and what they awoke and where they are now.
That said, for those who want a crash course in hardware with regards to the x86 platform:
Basically the way the typical x86 platform works for Intel and AMD right now is theirs the CPU, the chipset (Northbridge typically) and southbridge. The CPU does the processing while the chipset handles things such as graphics card (or IGP), memory (for current Intel chipsets, once Nehalem is here Intel will be like AMD in that the CPU will have an integrated memory controller or IMC to interface with the RAM), and the chipset (though usually its the southbridge) handles the other ports such as USB ports, SATA, RAID, etc.
THat's a VERY rough overview. But the point is that the CPU is NOT the Chipset. The Chipset merely interfaces with the CPU to handle other aspects of the platform.
For example, Intel has the X48 as its current performance chipset. Nvidia also makes motherboards that allow use of the LGA775 CPU's (all the Core 2 Duo, Quad, Extreme, and Pentium Dual Core processors) from Intel. However, Nvidia makes its own chipset. For example, its current performance chipset is the 790i for Intel.
Moving to Via would be a joke. AFAIK, ATI doesn't make chipsets for Intel anymore though pre-existing licenses still exist IIRC since Intel still has CrossFire enabled on all their multi PCI-E x16 Motherboards.
Moving to Nvidia would be stupid as well given their recent GPU chipset woes, and the fact that Nvidia chipsets + Intel CPU motherboards have had loads and loads of problems (680i, 780i, and 790i problems anyone?) that enthusiasts have had to deal with (believe it or not, most hardware issues actually lie with the hardware makers, and not Windows

)
ATI's recent forays into helping AMD chipsets, however, have been excellent. Those who follow HomeTheater PC's know that the AMD 780G and soon 790GX chipsets have been excellent featuring far better IGP performance than Intel and Nvidia's offerings as well as offering UVD (Universal Video Decoder to decode HD content on the GPU isntead of the CPU). They also support the discrete GPU + IGP solution where you run IGP during non-intensive tasks and turn on the discrete GPU when necessary, thus allowing power savings while including the discrete mobile 3xxx series GPU and future mobile 4xxx GPU. However, this platform, the 'Puma' platform uses AMD CPU's only. While in the mobility sector, the differecne between the K8.5 AMD notebook CPU's and the Intel Core 2 CPU's isn't that great, I don't see Apple going to AMD right now, though its not out of the realm of possibility.
THe reason why a switch to AMD wouldn't matter is that Intel licensed out the x86 license only to AMD and VIA and AMD is still competitive so Windows would still be runnable.
Anyways, I think this article is likely FUD or this won't happen for some time yet anyways since Intel is just about to begin Nehalem for the desktop and will certainly follow with it within a year as Montevina was jsut launched.
But a few key points:
In order to continue running Windows, they will have to continue use of x86 which means CPU wise, Intel AMD and Via are the only options. And of those, only Intel and AMD meet performance requireemnts.
Chipset-wise, Intel does NOT license out their chipset for Notebooks. Meaning if you use an Intel CPU, you are stuck with the Intel platform (same for AMD - if you use an AMD CPU for your notebook, you are stuck with their platform. THat doesn't mean you can't add discrete GPU's to your notebook, such as the 8600M arleady in the MBP but that the platform is still the same, and so far Apple has used the Santa Rosa platform for example.
Thus I find the article to be misleading since they say they won't use Montevina but will continue using the Intel CPUs. Thus there MUST be some collaboration with Intel on chipsets at the minimum in order to allow this continue or Intel will simply pull the plug on Apple using Intel CPU's, and Intel certainly isn't known to be pushed around.
Yes they acquried PA Semi but I don't think they have had the time to pull a chipset out of nowhere from Intel without serious collbaroation work otherwise we're likely to see buggy chipsets. Look at Nvidia's chipsets vs. Intel chispets. There is aboslutely no question who has the reliability thing down pat - and that's Intel chipset on an Intel platform.
This'll be interesting if true but as of right now, I'm filing this under FUD until further notice. Apple might be known for pushing the envelope but when it comes to hardware, Intel isn't pushed around and jumps aren't as easy as people seem to think
