The paper (if you read it) claims that the requirement should be enforced based on the Microsoft having monopolistic power in the marketplace. Apple doesn't wield monopolistic power in the marketplace for desktop operating systems.
This is all a bit more subtle than that. The problem is; how do you define the market? When you go out and buy a computer and operating system in a shop, it's clear that Apple an Microsoft have a duopoly (which is a bit dodgy when you consider that they have cooperation on patents locking competitors out of the market; but we will leave that aside). When you come to look after your old computer that is no longer true. Microsoft will not generally provide OSs for Apple computers and Apple will certainly not willingly provide them for PCs.
That's not true. Microsoft will happily sell you Windows to run on anything capable of running it, and Apple went out of their way to support ACPI and SMP tables that are acceptable to Microsoft OS's, even though it required adding some substantial EFI modules, as well as providing driver support for Windows for Apple proprietary hardware.
Apple will certainly not provide Mac OS X for non-Apple hardware; however, this has been upheld multiple times in court cases as being acceptable because Apple does not wield monopolistic power in the desktop computer marketplace. Courts have led exactly the opposite in findings of fact when it comes to Microsoft.
In this instance, we define "market" as "market for desktop computer operating systems".
This means that, whilst Apple does not have a monopoly on computing in any way, they do have a monopoly on support for old Apple computers.
Agreed; however, the IRS amortization schedule on computer hardware is 5 years - and unlike Windows on PC hardware, Apple desktop computers consist of both the hardware and the software, not just the software running on white-box/grey-box machines. You could make the argument on the basis of hardware only for hardware sold with Windows installed, if it was considered part of the hardware. But again, we have court precedent forcing companies such as Dell and HP to offer white-box/grey-box hardware without the so-called "Windows tax", This means that the software is not subject to the same accelerated depreciation.
Specifically, IRS Publication 544, Chapter 2, under "depreciable business assets".
The correct answer would probably be that there is already competition in this market. By changing to a Linux os perating system you can maintain your 15 year old computer fully supported. Unfortunately, in many cases that's not true. Device manufacturers only provide full documentation and support to Microsoft and the Linux drivers cannot be guaranteed.
This is very much a red herring; while Open Source OS vendors and advocates, such as FreeBSD and Linux would dearly love for this to be the case, the problem is actually not with the platform, but with the capitol investment as a lump sum business asset, in software components, such as Microsoft Office and other components which can be assembled together with glue code to implement vertical market solutions.
Microsoft explicitly does not support Visual Basic, Visual Studio, Microsoft Access, or other software on non-Windows Platforms for the use model of implementing vertical market solutions (i.e. neither Linux nor FreeBSD nor Mac OS X have such support).
Further, the software packages of this type from Microsoft are tied to a specific version of the Windows Operating system; that is, you can not take a version of Office intended for use on Windows XP, and run it on Windows 7 or later versions of the Microsoft OS platform. This explicit and intentional tying is monopolistic in nature. Further, the glue code for the vertical market systems previously mentions, *also* will not run on non-XP platforms.
Effectively, this means that Microsoft is leveraging their monopoly position in operating systems - specifically, with regard to the discontinuation of support for XP - into additional sales of non-OS Microsoft products, and to sales of middleware components and development tools. As a necessary side effect, they create a market for third parties to port code they've already written to the new middleware and applications components running on the new platform, without actually providing additional value for the intentional binary incompatibility of the user space code.
So there's more or is a good argument, in terms of what the paper is suggestion, for a third party market for the equivalent of "Autozone" replacement parts/repairs being made to Windows XP systems.
Forced "upgrades" which aren't actually "upgrades", since they don't provide fixes without damaging binary compatibility, are almost always a bad idea.
Not that Apple is completely innocent of this tactic with regard to new iOS versions; they've recently disabled the ability to turn off sync and update downloads happening over the cellular data connection, even though there are usage caps and extra costs to the user if this is left on, and they consistently pop up complaint dialogs when they can't fit the update into the storage on a 16G iPhone, and suggest you delete stuff to make room.
I fully expect for them to get a ration of shit in the courts for this at some point in the near future, particularly on things like older iPhone 4G's, where the over the cell network syncs and downloads have to occur before the phone lets you do anything else - like answer a phone call.
Maybe the new fashion designer VP they hired will do the right thing, and throw some phones against the wall, like Steve would have, until the issue is fixed.
In any case, the Windows XP end of life has been handled very, very badly, and the papers author has some great points, from a legal perspective, given the findings of fact on the monopolistic power by the courts in the Netscape case.