> And if you need "beautifull UI" \- you can't build it with anything other > than the platform native tools, no compromises like "UI wrapper in language > X".
That’s not true. If by “platform native tools” you mean Interface Builder, it’s not required, and has in fact become less useful over time as UIs stopped relying on absolute scales/positions. The only things you need to build a fully native Mac or iOS UI are the ability to call into Objective-C and to subclass certain Objective-C classes. Nim can do the former, but I’m not sure about the latter.