It is rare when one comes across articles that sum up the situation in very clear terms. Greg Gianforte has written this clear piece about the platform hoax, which is a clear view of the madness prevailing in the computer world.
If commercial vendors really are adding value as they claim they are, why isn't there a Microsoft Office for Linux? Since they already have a version that runs on a Unix derivative: how much longer before they port it to Linux? Never. And that's because "Windows is what this company is about".
I'm tired of this platform rubbish. The Mac platform versus the PC platform versus the Linux platform. Let people move between these effortlessly. Make a Firefox, which runs across the board. Make an Apache, which works on Windows as well. I'm tired of Monopoly Office, and Artistic iTunes. Use Java if you absolutely must, even though Java by itself is not the answer.
By the way, The Battle for Wesnoth is awesome. And it is available for Linux, Windows, and Mac OS X.