XCode. GCC is now under GPLv3. I've got a feeling the patent issues in v3 give Apple lawyers a serious rash. Also with it being under BSD, they can write the

XCode. GCC is now under GPLv3. I've got a feeling the patent issues in v3 give Apple lawyers a serious rash. Also with it being under BSD, they can write their own closed source extensions or reuse portions of their code in their own projects.