[cerberusss]

No, don't develop your own OS. Then you'd get your own weird-ass badly maintained OS instead of the standard Ubuntu or Red Hat or what have you. Instead just offer two or three distros preinstalled, and offer (maintained!) installation guides for when people want to do a fresh reinstall. Any weird drivers should be easily installable with a single-line yum or apt-get.

This is exactly what some cloud providers do, like DigitalOcean or Linode. They don't develop their own OS, they offer the stuff that people love and expect.

Also, I'd expect the number of BSD users to be a single percentage of the Linux users. I can't see that being a viable business, but it's worth some research.