https://developer.apple.com/library/prerelease/ios/documentation/Swift/Conceptual/BuildingCocoaApps/index.html https://developer.apple.com/library/prerelease/io

https://developer.apple.com/library/prerelease/ios/documentation/Swift/Conceptual/BuildingCocoaApps/index.html https://developer.apple.com/library/prerelease/ios/documenta... For discussion: https://news.ycombinator.com/item?id=7837468 https://news.ycombinator.com/item?id=7837468