If they sorted all that shit out (which i entirely agree with) they might even pull some enterprise customers in from the Microsoft direction as well. The Cocoa framework is pretty nice compared to MFC and comparable to WPF. We played with the idea of knocking out desktop integration on OS X for our product as there is a huge uptake of apple stuff in our sector. We canned it in the end and suggested parallels as there just weren't many good resources out there to get over the learning curve and you just can't get anyone in the UK who can do it.

Despite all their warts otherwise, Microsoft do a pretty good job of this via MSDN.