8 ms·Plan 9 is just as free as Linux.by ctrw 3y agoPlan 9 is just as free as Linux.adrian_b 3y agoNow, but not in the beginning, when this mattered.jecel 3y agoExactly - it was $500 for Plan 9 versus $0 for Linux which included all the sources until nobody was interested in Plan 9 anymore.pjmlp 3y agoJust like UNIX versus VMS, MVS and others.