Been dead for sometime. There is a lot of references to 4os on Google Groups where people were discussing if the company would open source the OS before they we

Been dead for sometime. There is a lot of references to 4os on Google Groups where people were discussing if the company would open source the OS before they went under. Judging by the fact there aren't many other references to 4os I don't believe they did. Discussion for those interested https://groups.google.com/forum/#!topic/comp.lang.forth/I3BglDBLnDQ https://groups.google.com/forum/#!topic/comp.lang.forth/I3Bg...