Yes, I have a fondness for Forth, too. The limited resources on early Arduinos, read limited RAM, since thats where a 'real' Forth wants to live, made it a very limited system, unless one went for a blended system where development occurs on your computer, compiled and uploaded to the Arduino, which is more complicated.
However, with the newer Arduinos with more powerful mpus, this should be much easier now, and a more traditional standalone Forth with adequate resources sounds eminently possible.
David Harris
OpenLCB Dev Team