There is a FANTASTIC post studying exclusionary deals with OEMS (The m$ "OEM tax") here (worth reading fully):
I think we should campaign for the Competition Commission forcing the unbundling of Windows and OEM
PC sales, and should declare the secret exclusionary contracts with OEMs illegal as a part of the result of
the anti-monopoly decission, and force these deals to be made public.
We should work with consumer rights organizations that have raised the issue of the lack of choice to organize a broader campaign:
Some big OEMs like Dell and Acer are beginning either look for alternatives to windows (albeit timidly) or
to show their anger at the low quality and high price of M$ products (Vista)
But as the Comes vs Microsoft Iowa state case documents show: Microsoft studies retaliations against the OEMs that choose to support Gnu/Linux (explicitly, there are documents about Dell offering of RedHat)
There are also some associations of SMBs PC manufacturers that are trying to offer Free Software
to their customers:
I think we should contact other organizations sharing similar goals and organize with them in order to make the commission decide on remedies that would actually help stop Microsoft monopolistic practices in the European Union and to recover a healthy IT competitive market, which is good for both european SMBs (and not so Small-Medium) and european consumers alike.
Another (older) reference:
"He Who Controls the Bootloader" by Scot Hacker. In this article, Hacker alleges that the reason for
Microsoft's monopoly are coercive contracts with OEMs (Original Equipment Manufacturers). OEMs get much lower prices on Windows, but are required to play by
Microsoft's rules. One of these rules: Don't install any OS besides Windows on your machines.
So you see what happened to BeOS (and OS2 before that)despite the clear technical superiority against
Windows: is this what we want to happen with Gnu/Linux and BSD? (For this is no doubt what Microsoft aims to)