[lukeman]

"The iOS system is based on the same technologies used by Mac OS X, namely the Mach kernel and BSD interfaces. Thus, iOS apps run in a UNIX-based system and have full support for threads, sockets, and many of the other technologies typically available at that level."[1]

[1]: https://developer.apple.com/library/ios/documentation/iphone...

[brownbat]

So the original prophecy was right, it just left out the bit about all the wonderful walled gardens that will help protect us from using the underlying *nix technologies in inappropriate ways.