When Safari for Windows was released at WWDC, many folks wondered if this meant that Apple had ported Cocoa to the dark side as well. According to Alacatia Labs, that is not the case: "all of these APIs are C++ or C... even the WebKit." Furthermore, there are "no signs of Cocoa or Objective-C (strings or functions)" and "they wrote it in Microsoft Visual Studio." So Safari for Windows and WebKit for Windows seem to be straightforward ports, and not the return of the old Yellow Box (Cocoa for Windows) environment. Good thing that Apple's software engineers have gotten plenty of experience writing for Windows with that other little project.
[via Daring Fireball]