For any recalcitrant forth coders, I've uploaded a .pet here.bigFORTH is a native code Forth. It is available for Linux and Windows 2000/XP under GPL. The most striking feature is the graphical user interface MINOS (GUI in Forth) and the form editor Theseus (Theseus is still beta).
To run Menu->Utility->BigForth, or in a console either bigforth or xbigforth
(N.B. I think, but not certain, that for some things you need a working openGL graphics environment. You'll know by whether the flying dragon works, or not.)