Chris Double asks:
Look at all the platforms that BottomFeeder, an RSS Aggregator, supports. You'd be hard pressed to get that sort of portability with Java even. Cincom Smalltalk seems to be very portable. I'm assuming there is no platform specific code in there?
There's no code that forces platform specific versions. There are some additional features on Windows - using the registry, it's possible to use an existing browser to launch an URL, whereas on other platforms, I have no idea how to do that. We just launch a new browser on other platforms. But there's nothing that ties an existing image to a platform - the image is portable.