Ian Bicking: the old part of his blog

see wikipedia entry

15 years ago they had an entire windowing system with a built-in forth interpreter (NeWS) and let it die in favor of the whole X / open look / Motif mess.
See the wikipedia entry on possible reasons for the demise of NeWS. In short 1) X was established before NeWS, 2) NeWS required licensing from Sun, and 3) it practice it proved difficult to use.
Comment on Re: Sun Comes Lately
by Andrew Dalke