> A summary of that would be great....

Heh. Serious power, terrible polish. They blew off all the NeXT veterans when they destroyed it as an objective-c development platform, but didn't finish the job of porting it to Java for five years so you ended up working on this platform that feels like a developed-in-isolation mainframe monster. Dev tools looked nice but made you want to slit your wrists from random crashes and other strangeness. There were a couple of periods where they looked like they would kill it which was stressful for people with codebases on it. All efforts at documentation did a very poor job of selling its incredible patterns and features.

But everyone I know who stuck at it has done well - many ended up at Apple working on very cool projects. I'd love to read a history of whoever wrote it one day - it was so far ahead of its time - I've got a theory that they had some people on it who had done serious research and practical time on some sort of web-like thin-client platform that pre-dated the web. Culture in Apple is different now too.