I guess it's all in how you look at it. Steven J. Vaughan-Nichols provides the following bit of time killer over on Desktop Linux, which I'm guessing is one of the lonelier Web destinations these days:

For the first time in ages, the sale of new PCs with Windows as a percentage of the PC market is declining sharply. The new winner is the Mac, but, while no one does a good job of tracking the still-new, pre-installed Linux desktop market, it's also clear that Linux is finally making impressive inroads into Windows' once unchallenged market share.

I see two strong trends here. On the high end, people are buying Macs instead of Windows PC. On the low end, Linux is eating Windows alive.

Windows finds itself being confined to the middle ground.

As proof, he cites the US-only, retail-only NPD numbers that made the rounds this week on all the Mac fanatic sites, and "empirical evidence makes it clear that Linux desktops are moving into customers' hands at a quick pace." I feel that neither of these is particularly relevant from a wider trend perspective, but I do like the concept of Windows being "caught between Mac and Linux." So much, in fact, that I graphed it with Excel, using actual, real-world market share figures from calendar year 2007. And when you do this, here's what you get, ladies and gentlemen. I present: Windows, caught between Mac and Linux:

Chicken Little, your time has come.