When you have such a stranglehold on the market, you don't NEED to be concerned. As most new machines come with Windoze bundled, and most people not even knowing they have alternatives, the other software vendors will have to make their software compatible or risk losing out on a massive market.
Not saying it's a GOOD attitude, but it's perfectly in keeping with what we have come to expect from Micro!!!!e! Business-wise, for them, they have very little to lose. Can't see anyone selling many PC's packaged with a non-MS OS, except for Macs of course.