[jacquesm]

I'm assuming you are writing your desktop application for the Mac because you are considering Cocoa, if you're starting from scratch that's an excellent reason to pick a platform independent library.

That choice is one you usually make only once in the lifetime of an application, you'd better make the right one. And I'd widen the field a bit to include other options not limited to Cocoa and Qt. If you have a success on your hands you'll really regret not being able to easily support other platforms.

Let's turn it around, what compelling reasons would you have for choosing Cocoa over a platform independent solution ?

[loluyede]

I think about TextMate success story where the author decided to go with the platform dependent library to make it shiny and not waste time fixing behavior bugs due to the multiplatformness