I think that it is safe to say that it is very unlikely that we will ever see an Apple Mac, Linux, AmigaDOS or Symbian* version of KiXtart except under Windows emulation.

The language is too tightly bound to Windows functionality and APIs, and much the same applies to KiXforms.

If you want to develop cross-platform programs you really need to use cross platform tools - something like PERL or PHP are available on pretty much any platform that you can think of.

However, cross platform GUI / WIMP interfaces are much harder to get without complex optional package installs. PERL has wxPERL and PHP can use something like GTK2 (via gnope for example) for cross platform GUI support.

The primary problem with these scripting languages is that the software that you have to install is pretty large to start with, and adding GUI libraries doesn't make it any easier.

Of course you could bite the bullet and learn C / C++ and write your own platform independent code \:\)

* Other operating systems are available