"Host Operating Systems: Windows NT/2000/XP, Irix" ... "As a demonstration, Inferno also ran as a plug-in under Internet Explorer version 4."

I would be more interested in the back-story behind this. Why did the creators of Unix think this would be a good way to take on the Java juggernaut? They had a language, Limbo, a lot like Go with a bytecode interpreter a lot like JVM. What was it for?