If there's any lesson to be learned in high school, it's that popularity is a fickle mistress. One day, you can be riding high on the strength of your awesome gaming skills, say, and the next, a fleeting fashion faux pas can bring you crashing down again. But maybe that was just Linux Girl. In any case, popularity is nothing if not changeable, as Ubuntu has aptly demonstrated in recent weeks. The Unity desktop, specifically, has raised more than a few eyebrows in the Linux community, causing some to speculate even that Canonical has lost its way.