I think Swift will take a little time to mature. Right now not only is the compiler buggy, Swift introduces some massive new functionality and style which will

I think Swift will take a little time to mature. Right now not only is the compiler buggy, Swift introduces some massive new functionality and style which will take time to propagate. For better or worse, I think Swift is trying to play the same game as Scala—being just enough OO and just enough FP to get everyone on board. I think it's an exciting space (I'm personally quite convinced that OO and FP represent roughly dual things and that there's a happy medium somewhere) but it also means there will be a longish period as "Swift style" is developed and propagated. So for all of those reasons, I think it's worth sticking with ObjC for a while unless you like a little bit of pain and want to be on the bleeding edge.