It is an ok article. I checked the license of LLVM though: http://llvm.org/releases/2.8/LICENSE.TXT http://llvm.org/releases/2.8/LICENSE.TXT http://llvm.org/d

It is an ok article. I checked the license of LLVM though: http://llvm.org/releases/2.8/LICENSE.TXT http://llvm.org/releases/2.8/LICENSE.TXT http://llvm.org/docs/FAQ.html#does-the-university-of-illinois-open-source-license-really-qualify-as-an-open-source-license http://llvm.org/docs/FAQ.html#does-the-university-of-illinoi... If there is something very specific to Apple and they want to keep the copyright after writing that module in LLVM, we should respect their decision. There are several companies using copyright licenses or not open sourcing anything they are working on. Compare to them this entire LLVM situation is a success story from the free software point of view. LLVM became the default toolchain and compiler for many project because of its high quality and meaningful error messages (GCC anyone?). I can live without Swift, but I definitely need LLVM going forward.