I\'m planing to buy a Mac. I would like to be able to develop GUI applications for Mac as well. Currently I develop in C# using VisualStudio as IDE. I also know Java and I\'
Daniel Steinberg says it well in the introduction to his Cocoa Programming book:
Use Objective-C. Sure, you can write Cocoa applications in other languages. But for now, learn the native language. There is a lot of support for new developers on the various Apple lists and in the support documentation, tutorials, and sample code accessible from Xcode. You will have an easier time of getting your question answered if you use the lingua franca of Cocoa development.