As an Open Source Software supporter, I wouldn't go wishing that business' PC's get shut down. I like linux, it's amazing, but since my business relies on AutoCAD and proprietary windows-only apps for most of it's day-to-day operations, I never even got the option to switch to a different OS.

If anything, that scenario might put pressure on the windows-only software shops to look toward supporting more operating systems, but until that time businesses running more than word processors and web browsers really don't have a choice.