Well, LLVM+clang first needed to be built up to be suitable for such an integration (on and off Apple's dime). I contrast the general situation with something

Well, LLVM+clang first needed to be built up to be suitable for such an integration (on and off Apple's dime). I contrast the general situation with something like C# which is on record as being designed from scratch to have synergy with Visual Studio, not the other way round. This general quality shines through while developing with it. For example, the wonderful LINQ language feature: Statically typed declarative operations on any data. You write these 'reversed' compared to SQL and in return that means each stage can be fully auto-completed. Back in Obj-C land AKA Jurassic Park, code's full of things like 'IBAction' and 'IBOutlet' which are C macros #defined to void or whatever, just to help the tools out. But, like I said, Apple ecosystem developers still manage to produce good results. All things considered, OS X / iOS are the best platforms from a user perspective, IMO :)