AFAIK pre-nextstep Objective C was also a very simple layer over C that only had "id" as a type with things like protocols, etc being introduced later by next.

AFAIK pre-nextstep Objective C was also a very simple layer over C that only had "id" as a type with things like protocols, etc being introduced later by next. (also i wonder if Stepstone had a leg to stand on regarding implementing a clone of Objective C... you couldn't call it Objective C as i guess they had a trademark over it, but what else would they license?)