What's the Linux Holdup?

Giving desktop Linux a larger market share? To be honest, this can be a touchy subject for me, personally. Much of the reasoning behind my "rough feelings" on the matter stem from the fact that I disagree with much of the Linux and Microsoft camps in general. That's right, I think that large numbers from both groups are wrong, and it's because of this that each OS is experiencing so much trouble now in the press.

What's the Linux Holdup?