Maybe I'm crazy/misremembering. But other than the "we're focussed on polishing it first" I thought I also read something reaffirming an interest (not from Apple officially but from one of the devs) to open source. And the LLVM mailing list post also contains a pretty clear "a lot of us really want to open source this" statement. Maybe this is just a misunderstanding: I didn't mean to imply that Apple expressed "an interest" as in "officially announced an interest". That would be very un-Apple-like. They tend to either do or don't. What I meant is that voices out of the project said they'd like to open-source. Which at that level (compiler/low-level) seems to suggest that it's likely. Given Apple's track record in that area / on that level.