Actually, as someone who has used Linux as desktop software since 1996, I would say the exact opposite: it's making rapid progress compared to where it was once. Perhaps it still hasn't quite caught up, but I'm relatively certain that soonish, it will be 'good enough' for an ever-larger segment of the population. It's already 'good enough' for a lot of people.
Until it is. In 2006 we had Ubuntu on all computers at the company I worked for, because most of the people were either 1) developers and used it anwyway or 2) didn't really need more than a browser and openoffice anyway, and were thus perfectly content with it.
