My question to Forth programmers. What is the most(best?) actively developed and mature Forth implementation that could be run on Linux, Mac OS X and win32? I have googled some links but I'd like to hear from the experienced Forth programmers. Any good introductory books (like PCL but not for dummies :)
The second question. Does anyone know some simple Forth implementations written in CL or Scheme, and vice versa.
Pardon my french.