You really should have read the link before you posted, my eager friend.
From the W3C browser stats page
January 2007 Linux has 3.6%
Feburary 2007 Linux has 3.5%
March 2007 Linux 3.4%
Yes, I'm afraid that Linux share is actually on the way down according to the figures you've given us here.
But if we visit a site with another site, we see that things are even worse, with Vista having already smacked Linux around the schoolyard several times over. According to these figures, Vista has already overtaken the number of new Intel Macs in use.
Y'know I've just had a thought. You're really a Vista fan aren't you? The poor arguments you present here are really a very clever way of undermining the Linux platform. I mean, why else would you post figures proving that Linux on the desktop is fading away?