While I feel like Swift missed the opportunity to become a popular language outside of Apple platforms, this is still fantastic news. Having the source code available for Foundation could make debugging things much easier in addition to being able to fix issues! There really is nothing more frustrating when working with Apple platforms over not being able to ever fix things. I get jealous of my Android colleagues in this area.

Interesting. Maybe this is the true death of Objective C?

Fantastic news for the language. This is the first step for a true life outside of apple walled garden.