It's plausible that they have been maintaining the Windows port of the Cocoa libraries all along. This port existed at the time of the Apple/NeXT acquisition.

It's plausible that they have been maintaining the Windows port of the Cocoa libraries all along. This port existed at the time of the Apple/NeXT acquisition. It was called "OpenStep/Enterprise"...but it was, basically, a Windows port of the same APIs that became Cocoa. http://en.wikipedia.org/wiki/File:OPENSTEP_on_Windows_NT.jpg http://en.wikipedia.org/wiki/File:OPENSTEP_on_Windows_NT.jpg Recall that when Apple still only sold PowerPC machines that MacOS X was "leading a secret double life" in the labs in the form of the same x86 port of NeXTstep that was brought forward in tandem with MacOS X as it progressed. They could be doing the same thing with Cocoa/Win.