"In the bygone misty past of Unix (in the era historians call the 80s), acceptance and market
share were hampered by the diverging standards that forced application developers to
write for only one version of Unix. This (as the youngsters today say) really sucked.
Fortunately, however, the tide has turned in favor of compatibility among the many *nixes.
To commercial software vendors, market share is everything. As such, if *BSD forced Linux
vendors to develop for their OSes, it would be like your average Unix sysadmin saying, 'If
Cindy Crawford wants to go out, she can call me.'" Read more (about FreeBSD and Linux, not Cindy Crawford) at ISPWorld.com.