[GiantCrayon]

Within the last few years, I've inherited a number of projects written using several of the above choices. While I don't want to appear _too_ negative, IME, apps produced using cross-platform GUI kits look bad on all operating systems.

I'd like to offer a "none of the above", which is to code the underlying "engine" of your app in C++, then connect that engine up to an OS-native GUI.

Just my $0.02.

[potatolicious]

Absolutely agreed. Stop contributing to the horrid usability of each platform by mixing and matching UI paradigms in a vain effort to create something that "fits" all platforms.

Cross-platform UI toolkits are the devil for any serious app - each OS, whether Linux, OS X, or Windows, have their own UI needs and guidelines that should be respected.

It's high time that engineers started paying attention to making their software accessible and usable, instead of focusing all their attention on core "features" that nobody can figure out, or want to.