OSDev.org

I'm considering making Objective-C the main language of my operating system. Any language that can make use of it (there are bridges to just about everything remotely object-oriented) would be a valid system language. In theory (I'm not sure if it's entirely possible with the GNU objc runtime) you could even implement a single class in multiple languages. If I were to design a ground-up language, it would probably look a lot like ECMAScript due to familiar syntax combined with Scheme-like features. Alternatively, I'd go for Scheme itself. I've been (slowly) working through SICP and am rather fond of it already.