"The nightmare scenario of any company thinking of investing or already committed to Linux goes something like this: as more and more vendors get behind the OS, commercial pressures will lead to fragmentation, and users end up stuck with an isolated Linux distribution.
"It’s a vision that Microsoft is understandably keen to promote. In a January interview with BusinessWeek, Kevin Johnson, Microsoft's group vice-president for worldwide sales, marketing and services, gave a familiar assessment of Linux: 'It has the potential to fragment like Unix did,' he said..."