Sun is also no more... and it&#x27;s not at all clear they would&#x27;ve survived had Solaris been open sourced a decade earlier.<p>Yes, you&#x27;re absolutely right that there are a ton of startups built on opensolaris (who have proprietary code they haven&#x27;t and don&#x27;t intend to ever give back to the community), and there is smartos&#x2F;omnios&#x2F;illumos as well.  But none of those projects would have in any way contributed to the health of Sun Microsystems, nor provided the funding to get Solaris to where it is today.  ZFS may have never seen the light of day if Solaris were open sourced in 1995.