The site's name is an Apple/OSX cultural reference. It refers to NeXSTEP: http://en.wikipedia.org/wiki/Nextstep http://en.wikipedia.org/wiki/Nextstep In particu

The site's name is an Apple/OSX cultural reference. It refers to NeXSTEP: http://en.wikipedia.org/wiki/Nextstep http://en.wikipedia.org/wiki/Nextstep In particular, the core classes of Objective-c (and thus Cocoa and Cocoa Touch for iOS) use NS as a prefix: https://developer.apple.com/library/ios/documentation/cocoa/reference/foundation/ObjC_classic/_index.html https://developer.apple.com/library/ios/documentation/cocoa/...