Talking of RAD design tools, anyone who wants to build a UI designer should take a serious look at Apple's Interface Builder. It would be a good idea to keep the IDE and the interface designer separate, and communicate via BMessages. That way, one person/team can write a UI designer and every existing IDE can use it. Same goes for build tools, resource editors, foobar. I really like the Paladin approach. The IDE only manages your project structure, and relies on external applications for editing and building. All IMO, of course :) -- Salut, General Maximus