python has done a great job at cross-platform development. If anything I'd say there is more work spent on "native-feel" in windows than mac. Since windows is t

python has done a great job at cross-platform development. If anything I'd say there is more work spent on "native-feel" in windows than mac. Since windows is the one that doesn't play well with others. I'd also recommend wxWidgets or QT using the related python (or ruby) bindings. I know exactly what you are saying about "good enough" apps. I can still remember some gtk+ apps for windows a few years ago... it was embarrassing. Given enough time the apps I've seen recently are native and no longer just "good enough".